| | |
| | Abronia ammophila Greene |
| | Abronia elliptica A.Nelson |
| | Abronia fragrans Nutt. ex Hook. |
| | Abronia latifolia Eschsch. |
| | Abronia mellifera Douglas ex Hook. |
| | Abronia nana S.Watson |
| | Actaea rubra (Aiton) Willd. |
| | Adeia whitneyi (A.Gray) G.L.Nesom trib. Astereae |
| | Agastache cusickii (Greenm.) A.Heller |
| | Agoseris aurantiaca (Hook.) Greene trib. Cichorieae |
| | Agoseris carnea Rydb. trib. Cichorieae |
| | Agoseris eastwoodiae Fedde trib. Cichorieae |
| | Agoseris glauca (Pursh) Raf. trib. Cichorieae |
| | Agoseris grandiflora (Nutt.) Greene trib. Cichorieae |
| | Agoseris maritima E.Sheld. trib. Cichorieae |
| | Agoseris monticola Greene trib. Cichorieae |
| | Agoseris parviflora (Nutt.) D.Dietr. trib. Cichorieae |
| | Agoseris purpurea (A.Gray) Greene |
| | Agoseris retrorsa (Benth.) Greene trib. Cichorieae |
| | Achlys triphylla DC. |
| | Aletes humilis J.M.Coult. & Rose |
| | Alchemilla filicaulis Buser |
| | Aliciella pentstemonoides (M.E.Jones) J.M.Porter |
| | Aliciella stenothyrsa (A.Gray) J.M.Porter |
| | Aliciella subnuda (Torr. ex A.Gray) J.M.Porter |
| | Amorpha nana C.Fraser trib. Psoraleeae |
| | Amsonia jonesii Woodson trib. Vinceae |
| | Andersonglossum occidentale (A.Gray) J.I.Cohen |
| | Andromeda polifolia L. |
| | Androsace conservatorum (Björk) Giblin |
| | Androsace idahoensis (Douglass M.Hend.) Cubey |
| | Androsace laevigata (A.Gray) Wendelbo |
| | Androsace lehmanniana Spreng. sect. Chamaejasme |
| | Androsace montana (A.Gray) Wendelbo |
| | Androsace nivalis (Lindl.) Wendelbo |
| | Anelsonia eurycarpa (A.Gray) J.F.Macbr. & Payson |
| | Anemonastrum canadense (L.) Mosyakin |
| | Anemonastrum deltoideum (Douglas) Mosyakinn |
| | Anemonastrum zephyrum (A.Nelson) Holub |
| | Anemone cylindrica A.Gray |
| | Anemone drummondii S.Watson |
| | Anemone hudsoniana (DC.) Richardson |
| | Anemone lithophila Rydb. |
| | Anemone parviflora Michx. |
| | Anemone tetonensis Porter ex Britton |
| | Anemonoides grayi (Behr & Kellogg) Starod. |
| | Anemonoides oregana (A.Gray) Holub |
| | Anemonoides piperi (Rydb.) Holub |
| | Antennaria alpina (L.) Gaertn. trib. Gnaphalieae |
| | Antennaria anaphaloides Rydb. trib. Gnaphalieae |
| | Antennaria angustata Greene trib. Gnaphalieae |
| | Antennaria arcuata Cronquist trib. Gnaphalieae |
| | Antennaria argentea Benth. trib. Gnaphalieae |
| | Antennaria arida E.E.Nelson trib. Gnaphalieae |
| | Antennaria aromatica Evert trib. Gnaphalieae |
| | Antennaria confinis Greene trib. Gnaphalieae |
| | Antennaria corymbosa E.E.Nelson trib. Gnaphalieae |
| | Antennaria densifolia A.E.Porsild trib. Gnaphalieae |
| | Antennaria dimorpha Torr. & A.Gray trib. Gnaphalieae |
| | Antennaria flagellaris (A.Gray) A.Gray trib. Gnaphalieae |
| | Antennaria geyeri A.Gray trib. Gnaphalieae |
| | Antennaria howellii Greene trib. Gnaphalieae |
| | Antennaria lanata Greene |
| | Antennaria luzuloides Torr. & Gray trib. Gnaphalieae |
| | Antennaria marginata Greene trib. Gnaphalieae |
| | Antennaria media Greene trib. Gnaphalieae |
| | Antennaria microcephala A.Gray trib. Gnaphalieae |
| | Antennaria microphylla Rydb. trib. Gnaphalieae |
| | Antennaria neglecta Greene trib. Gnaphalieae |
| | Antennaria neodioica Greene trib. Gnaphalieae |
| | Antennaria parvifolia Nutt. trib. Gnaphalieae |
| | Antennaria petaloidea Fernald trib. Gnaphalieae |
| | Antennaria pulcherrima (Hook.) Greene trib. Gnaphalieae |
| | Antennaria pulvinata Greene trib. Gnaphalieae |
| | Antennaria racemosa Hook. trib. Gnaphalieae |
| | Antennaria rosea Greene trib. Gnaphalieae |
| | Antennaria rosulata Rydb. trib. Gnaphalieae |
| | Antennaria stenophylla (A.Gray) A.Gray trib. Gnaphalieae |
| | Antennaria suffrutescens Greene trib. Gnaphalieae |
| | Antennaria umbrinella Rydb. trib. Gnaphalieae |
| | Aquilegia barnebyi Munz |
| | Aquilegia brevistyla Hook. |
| | Aquilegia coerulea E.James |
| | Aquilegia elegantula Greene |
| | Aquilegia flavescens S.Watson |
| | Aquilegia formosa Fisch. ex DC. |
| | Aquilegia chrysantha A.Gray |
| | Aquilegia jonesii Parry |
| | Aquilegia laramiensis A.Nelson |
| | Aquilegia micrantha Eastw. |
| | Aquilegia saximontana Rydb. |
| | Aquilegia shockleyi Eastw. |
| | Aquilegia truncata Fisch. & C.A.Mey. |
| | Arabidopsis kamchatica (Fisch. ex DC.) K.Shimizu & Kudo |
| | Arabis aculeolata Greene |
| | Arabis crucisetosa Constance & Rollins |
| | Arabis furcata S.Watson |
| | Arabis mcdonaldiana Eastw. |
| | Arabis modesta Rollins |
| | Arabis nuttallii (Kuntze) B.L.Rob. |
| | Arabis olympica Piper |
| | Arabis oregana Rollins |
| | Arcteranthis cooleyae (Vasey & Rose) Greene |
| | Arctostaphylos nevadensis A.Gray |
| | Arctostaphylos uva-ursi (L.) Spreng. |
| | Arctous rubra (Rehder & E.H.Wilson) Nakai |
| | Arenaria saxosa A.Gray |
| | Armeria californica (Boiss.) P.M.Sl. |
| | Armeria maritima (Mill.) Willd. |
| | Armeria sibirica Turcz. ex Boiss. |
| | Arnica angustifolia Vahl trib. Heliantheae |
| | Arnica cernua Howell trib. Heliantheae |
| | Arnica cordifolia Hook. trib. Heliantheae |
| | Arnica fulgens Pursh trib. Heliantheae |
| | Arnica gracilis Rydb. trib. Heliantheae |
| | Arnica chamissonis Less. trib. Heliantheae |
| | Arnica latifolia Bong. trib. Heliantheae |
| | Arnica lonchophylla Greene trib. Heliantheae |
| | Arnica nevadensis A.Gray trib. Heliantheae |
| | Arnica parryi A.Gray trib. Heliantheae |
| | Arnica rydbergii Greene trib. Heliantheae |
| | Arnica sororia Greene trib. Heliantheae |
| | Arnica spathulata Greene trib. Heliantheae |
| | Arnica tomentosa J.M.Macoun trib. Heliantheae |
| | Arnica viscosa A.Gray trib. Heliantheae |
| | Artemisia albicans Son.Garcia & al. trib. Anthemideae |
| | Artemisia arbuscula Nutt. trib. Anthemideae |
| | Artemisia bolanderi A.Gray trib. Anthemideae |
| | Artemisia borealis Pall. trib. Anthemideae |
| | Artemisia cana Pursh trib. Anthemideae |
| | Artemisia capitata (Nutt.) Són.Garcia & al. trib. Anthemideae |
| | Artemisia carruthii Alph.Wood ex J.H.Carruth trib. Anthemideae |
| | Artemisia frigida Willd. trib. Anthemideae |
| | Artemisia furcata M.Bieb. trib. Anthemideae |
| | Artemisia longiloba (Osterh.) Beetle trib. Anthemideae |
| | Artemisia nova A.Nelson trib. Anthemideae |
| | Artemisia nuttallii (Torr. & A.Gray) Mosyakin & al. trib. Anthemideae |
| | Artemisia packardiae J.W.Grimes & Ertter trib. Anthemideae |
| | Artemisia papposa S.F.Blake & Cronquist trib. Anthemideae |
| | Artemisia parryi A.Gray trib. Anthemideae |
| | Artemisia pedatifida Nutt. trib. Anthemideae |
| | Artemisia porteri Cronquist trib. Anthemideae |
| | Artemisia potentilloides A.Gray trib. Anthemideae |
| | Artemisia pygmaea A.Gray trib. Anthemideae |
| | Artemisia rigida (Nutt.) A.Gray trib. Anthemideae |
| | Artemisia rupicola (Beetle) P.M.Sl. trib. Anthemideae |
| | Artemisia saxicola Rydb. trib. Anthemideae |
| | Artemisia scopulorum A.Gray trib. Anthemideae |
| | Artemisia simplex (A.Nelson) Són.Garcia & al. trib. Anthemideae |
| | Artemisia spinescens D.C.Eaton trib. Anthemideae |
| | Artemisia stelleriana Besser trib. Anthemideae |
| | Artemisia tilesii Ledeb. trib. Anthemideae |
| | Artemisia viscidula Rydb. trib. Anthemideae |
| | Asarum caudatum Lindl. |
| | Asarum hartwegii S.Watson |
| | Asarum marmoratum Piper |
| | Asclepias cryptoceras S.Watson trib. Asclepiadeae |
| | Asclepias davisii Woodson trib. Asclepiadeae |
| | Asclepias uncialis Greene trib. Asclepiadeae |
| | Askellia elegans (Hook.) W.A.Weber trib. Cichorieae |
| | Askellia pygmaea (Ledeb.) Sennikov trib. Cichorieae |
| | Aster culminis A.Nelson trib. Astereae |
| | Astragalus aboriginorum Richardson trib. Galegeae |
| | Astragalus accidens S.Watson |
| | Astragalus agrestis Douglas ex G.Don sect. Hypoglottidei |
| | Astragalus alpinus L. sect. Komaroviella |
| | Astragalus amblytropis Barneby |
| | Astragalus amnis-amissi Barneby |
| | Astragalus amphioxys A.Gray trib. Galegeae |
| | Astragalus anisus M.E.Jones trib. Galegeae |
| | Astragalus anserinus N.D.Atwood, Goodrich & S.L.Welsh trib. Galegeae |
| | Astragalus aquilonius (Barneby) Barneby |
| | Astragalus aretioides (M.E.Jones) Barneby |
| | Astragalus argophyllus Nutt. |
| | Astragalus arrectus A.Gray |
| | Astragalus arthuri M.E.Jones |
| | Astragalus atratus S.Watson trib. Galegeae |
| | Astragalus barrii Barneby trib. Galegeae |
| | Astragalus bodinii E.Sheld. trib. Galegeae |
| | Astragalus bourgovii A.Gray |
| | Astragalus brandegeei Porter & J.M.Coulter trib. Galegeae |
| | Astragalus calycosus Torr. ex S.Watson |
| | Astragalus ceramicus E.Sheld. trib. Galegeae |
| | Astragalus cerussatus E.Sheld. trib. Galegeae |
| | Astragalus cibarius E.Sheld. |
| | Astragalus columbianus Barneby |
| | Astragalus cottamii S.L.Welsh trib. Galegeae |
| | Astragalus cottonii M.E.Jones |
| | Astragalus crassicarpus Nutt. |
| | Astragalus cronquistii Barneby |
| | Astragalus decumbens (Nutt.) A.Gray trib. Galegeae |
| | Astragalus desperatus M.E.Jones trib. Galegeae |
| | Astragalus deterior (Barneby) Barneby |
| | Astragalus detritalis M.E.Jones |
| | Astragalus diphysus A.Gray trib. Galegeae |
| | Astragalus drabelliformis Barneby |
| | Astragalus drummondii Douglas ex Hook. trib. Galegeae |
| | Astragalus eastwoodiae M.E.Jones trib. Galegeae |
| | Astragalus eucosmus B.L.Rob. sect. Malacothrix |
| | Astragalus filifolius A.Gray trib. Galegeae |
| | Astragalus flavus Nutt. |
| | Astragalus garrettii J.F.Macbr. trib. Galegeae |
| | Astragalus gilviflorus E.Sheld. trib. Galegeae |
| | Astragalus glareosus Douglas trib. Galegeae |
| | Astragalus grayi Parry ex S.Watson |
| | Astragalus hallii A.Gray |
| | Astragalus hamiltonii Ced.Porter trib. Galegeae |
| | Astragalus hendersonii S.Watson |
| | Astragalus hoodianus Howell trib. Galegeae |
| | Astragalus howellii A.Gray |
| | Astragalus humillimus A.Gray |
| | Astragalus humistratus A.Gray trib. Galegeae |
| | Astragalus hyalinus M.E.Jones |
| | Astragalus hylophilus (Rydb.) A.Nelson trib. Galegeae |
| | Astragalus chamaeleuce A.Gray |
| | Astragalus chloodes Barneby |
| | Astragalus impensus (E.Sheld.) Wooton & Standl. trib. Galegeae |
| | Astragalus inflexus Douglas ex Hook. |
| | Astragalus iodanthus S.Watson trib. Galegeae |
| | Astragalus iodopetalus (Rydb.) Greene ex Barneby trib. Galegeae |
| | Astragalus jejunus S.Watson |
| | Astragalus jessiae M.Peck trib. Galegeae |
| | Astragalus kentrophyta A.Gray trib. Galegeae |
| | Astragalus lackschewitzii Lavin & H.Marriot trib. Galegeae |
| | Astragalus lagopinus (Rydb.) M.Peck trib. Galegeae |
| | Astragalus leibergii M.E.Jones trib. Galegeae |
| | Astragalus lentiginosus Douglas ex Hook. trib. Galegeae |
| | Astragalus leptaleus A.Gray trib. Galegeae |
| | Astragalus lotiflorus Hook. trib. Galegeae |
| | Astragalus lutosus M.E.Jones trib. Galegeae |
| | Astragalus malacus A.Gray |
| | Astragalus megacarpus (Nutt.) A.Gray |
| | Astragalus merrillii (Rydb.) Tidestr. trib. Galegeae |
| | Astragalus microcystis A.Gray |
| | Astragalus misellus S.Watson trib. Galegeae |
| | Astragalus miser Douglas ex Hook. trib. Galegeae |
| | Astragalus missouriensis Nutt. trib. Galegeae |
| | Astragalus mollissimus Torr. trib. Galegeae |
| | Astragalus molybdenus Barneby |
| | Astragalus mulfordiae M.E.Jones |
| | Astragalus musiniensis M.E.Jones |
| | Astragalus naturitensis Payson |
| | Astragalus nelsonianus Barneby |
| | Astragalus newberryi A.Gray trib. Galegeae |
| | Astragalus nudisiliquus A.Nelson trib. Galegeae |
| | Astragalus obscurus S.Watson trib. Galegeae |
| | Astragalus oniciformis Barneby |
| | Astragalus oophorus S.Watson trib. Galegeae |
| | Astragalus ophiogenes Barneby trib. Galegeae |
| | Astragalus oreganus Nutt. |
| | Astragalus owyheensis A.Nelson & J.F.Macbr. trib. Galegeae |
| | Astragalus palans M.E.Jones trib. Galegeae |
| | Astragalus parryi A.Gray |
| | Astragalus paysonii (Rydb.) Barneby trib. Galegeae |
| | Astragalus peckii Piper |
| | Astragalus pectinatus (Hook.) Douglas ex G.Don trib. Galegeae |
| | Astragalus piscator Barneby & S.L.Welsh trib. Galegeae |
| | Astragalus plattensis Nutt. trib. Galegeae |
| | Astragalus platytropis A.Gray trib. Galegeae |
| | Astragalus preussii A.Gray |
| | Astragalus proimanthus Barneby |
| | Astragalus proximus (Rydb.) Wooton & Standl. trib. Galegeae |
| | Astragalus prunifer Rydb. |
| | Astragalus pubentissimus Torr. & A.Gray |
| | Astragalus pulsiferae A.Gray |
| | Astragalus purshii Douglas ex G.Don trib. Galegeae |
| | Astragalus reventiformis (Rydb.) Barneby trib. Galegeae |
| | Astragalus reventus A.Gray trib. Galegeae |
| | Astragalus riparius Barneby |
| | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| | Astragalus salinus Howell trib. Galegeae |
| | Astragalus salmonis M.E.Jones |
| | Astragalus scaposus A.Gray |
| | Astragalus sericoleucus A.Gray trib. Galegeae |
| | Astragalus serotinus A.Gray ex E.Cooper trib. Galegeae |
| | Astragalus sesquiflorus S.Watson trib. Galegeae |
| | Astragalus sheldonii (Rydb.) Barneby trib. Galegeae |
| | Astragalus shortianus Nutt. |
| | Astragalus schmolliae Cedr.Porter trib. Galegeae |
| | Astragalus schultziorum Barneby trib. Galegeae |
| | Astragalus simplicifolius (Nutt.) A.Gray trib. Galegeae |
| | Astragalus sinuatus Piper |
| | Astragalus siskiyouensis (Rydb.) J.W.Thomps. trib. Galegeae |
| | Astragalus sonneanus Greene trib. Galegeae |
| | Astragalus spaldingii A.Gray trib. Galegeae |
| | Astragalus sparsiflorus A.Gray |
| | Astragalus spatulatus E.Sheld. |
| | Astragalus speirocarpus A.Gray |
| | Astragalus striatus Nutt. sect. Onobrychoidei |
| | Astragalus suksdorfii Howell trib. Galegeae |
| | Astragalus tegetarioides M.E.Jones trib. Galegeae |
| | Astragalus tegetarius S.Watson trib. Galegeae |
| | Astragalus terminalis S.Watson |
| | Astragalus tetrapterus A.Gray |
| | Astragalus thompsoniae S.Watson trib. Galegeae |
| | Astragalus tridactylicus A.Gray trib. Galegeae |
| | Astragalus utahensis (Torr.) Torr. & A.Gray |
| | Astragalus vespertinus E.Sheld. trib. Galegeae |
| | Astragalus vexilliflexus E.Sheld. |
| | Astragalus wetherillii M.E.Jones |
| | Astragalus whitneyi A.Gray trib. Galegeae |
| | Astragalus wingatanus S.Watson |
| | Atriplex confertifolia (Torr. & Frémont) S.Watson |
| | Atriplex corrugata S.Watson |
| | |
| | Balsamorhiza careyana A.Gray trib. Heliantheae |
| | Balsamorhiza deltoidea Nutt. trib. Heliantheae |
| | Balsamorhiza hispidula W.M.Sharp trib. Heliantheae |
| | Balsamorhiza hookeri Nutt. trib. Heliantheae |
| | Balsamorhiza incana Nutt. trib. Heliantheae |
| | Balsamorhiza macrolepis W.M.Sharp trib. Heliantheae |
| | Balsamorhiza rosea A.Nelson & J.F.Macbr. trib. Heliantheae |
| | Balsamorhiza sericea W.A.Weber trib. Heliantheae |
| | Balsamorhiza serrata A.Nelson & J.F.Macbr. trib. Heliantheae |
| | Berberis nervosa Pursh |
| | Berberis repens Lindl. |
| | Betula glandulosa Michx. |
| | Betula pumila L. |
| | Bistorta vivipara (L.) Delarbre |
| | Boechera atrorubens (Suksd. ex Greene) Windham & Al-Shehbaz |
| | Boechera breweri (S.Watson) Al-Shehbaz |
| | Boechera cascadensis Windham & Al-Shehbaz |
| | Boechera centrifendleri P.J.Alexander |
| | Boechera cobrensis (M.E.Jones) Dorn |
| | Boechera covillei (Greene) Windham & Al-Shehbaz |
| | Boechera crandallii (B.L.Rob.) W.A.Weber |
| | Boechera cusickii (S.Watson) Al-Shehbaz |
| | Boechera davidsonii (Greene) N.H.Holmgren |
| | Boechera drepanoloba (Greene) Windham & Al-Shehbaz |
| | Boechera duchesnensis (Rollins) Windham & al. |
| | Boechera fecunda (Rollins) Dorn |
| | Boechera fendleri (S.Watson) W.A.Weber |
| | Boechera gunnisoniana (Rollins) W.A.Weber |
| | Boechera hastatula (Greene) Al-Shehbaz |
| | Boechera horizontalis (Greene) Windham & Al-Shehbaz |
| | Boechera howellii (S.Watson) Windham & Al-Shehbaz |
| | Boechera koehleri (Howell) Al-Shehbaz |
| | Boechera languida (Rollins) Windham & Al-Shehbaz |
| | Boechera lemmonii (S.Watson) W.A.Weber |
| | Boechera lyallii (S.Watson) Dorn |
| | Boechera macounii (S.Watson) Windham & Al-Shehbaz |
| | Boechera microphylla (Nutt. ex Torr. & A.Gray) Dorn |
| | Boechera oxylobula (Greene) W.A.Weber |
| | Boechera paddoensis (Rollins) Windham & Al-Shehbaz |
| | Boechera paupercula (Greene) Windham & Al-Shehbaz |
| | Boechera pendulina (Greene) W.A.Weber |
| | Boechera pendulocarpa (A.Nelson) Windham & Al-Shehbaz |
| | Boechera platysperma (A.Gray) Al-Shehbaz |
| | Boechera pusilla (Rollins) Dorn |
| | Boechera rollei (Rollins) Al-Shehbaz |
| | Boechera rollinsiorum Windham & Al-Shehbaz |
| | Boechera saximontana (Rollins) Windham & Al-Shehbaz |
| | Boechera sparsiflora (Nutt.) Dorn |
| | Boechera spatifolia (Rydb.) Windham & Al-Shehbaz |
| | Boechera subpinnatifida (S.Watson) Al-Shehbaz |
| | Boechera suffrutescens (S.Watson) Dorn |
| | Boechera vivariensis (S.L.Welsh) W.A.Weber |
| | Boechera williamsii (Rollins) Dorn |
| | Bolandra oregana S.Watson |
| | Boykinia major A.Gray |
| | Boykinia occidentalis Torr. & A.Gray |
| | Braya glabella Richardson |
| | Brewerimitella breweri (A.Gray) R.A.Folk & Y.Okuyama |
| | Brewerimitella ovalis (Greene) R.A.Folk & Y.Okuyama |
| | Brickellia atractyloides A.Gray trib. Eupatorieae |
| | Brickellia greenei A.Gray trib. Eupatorieae |
| | Brickellia linifolia D.C.Eaton trib. Eupatorieae |
| | Brickellia microphylla (Nutt.) A.Gray trib. Eupatorieae |
| | Brickellia oblongifolia Nutt. trib. Eupatorieae |
| | |
| | Cacaliopsis nardosmia (A.Gray) A.Gray trib. Senecioneae |
| | Callirhoe involucrata (Torr. & A.Gray) A.Gray |
| | Caltha leptosepala DC. |
| | Calyptridium monospermum Greene |
| | Calyptridium umbellatum (Torr.) Greene |
| | Camissoniopsis cheiranthifolia (Hornem.) W.L.Wagner & Hoch |
| | Campanula lasiocarpa Cham. |
| | Campanula parryi A.Gray |
| | Campanula piperi Howell |
| | Campanula scabrella Engelm. |
| | Campanula scouleri Hook. ex A.DC. |
| | Cardamine bellidifolia L. |
| | Cardamine breweri S.Watson |
| | Cardamine constancei Detling |
| | Cardamine holmgrenii Al-Shehbaz |
| | Cardamine nuttallii Greene |
| | Cardamine rupicola (O.E.Schulz) C.L.Hitchc. |
| | Cardamine umbellata Greene |
| | Cassiope lycopodioides (Pall.) D.Don |
| | Cassiope mertensiana (Bong.) D.Don |
| | Cassiope saximontana Small |
| | Cassiope stelleriana (Pall.) DC. |
| | Castilleja angustifolia (Nutt.) G.Don |
| | Castilleja applegatei Fernald |
| | Castilleja arachnoidea Greenm. |
| | Castilleja collegiorum J.M.Egger & Malaby |
| | Castilleja covilleana L.F.Hend. |
| | Castilleja cryptantha Pennell & G.N.Jones |
| | Castilleja dixonii Fernald |
| | Castilleja dubia (A.Nelson) A.Nelson |
| | Castilleja flava S.Watson |
| | Castilleja flavescens Pennel ex Edwin |
| | Castilleja fraterna Greenm. |
| | Castilleja glandulifera Pennell |
| | Castilleja haydenii (A.Gray) Cockerell |
| | Castilleja hispida Benth. |
| | Castilleja chambersii M.Egger & Meinke |
| | Castilleja chlorotica Piper |
| | Castilleja christii N.H.Holmgren |
| | Castilleja chrysantha Greenm. |
| | Castilleja integra A.Gray |
| | Castilleja inverta (A.Nelson & J.F.Macbr.) Pennell & Ownbey |
| | Castilleja longispica A.Nelson |
| | Castilleja miniata Douglas ex Hook. |
| | Castilleja nivea Pennell & Ownbey |
| | Castilleja occidentalis Torr. |
| | Castilleja olympica G.N.Jones |
| | Castilleja oreopola Greenm. |
| | Castilleja oresbia Greenm. |
| | Castilleja pallescens (A.Gray) Greenm. |
| | Castilleja parviflora Bong. |
| | Castilleja pilosa (S.Watson) Rydb. |
| | Castilleja pinetorum Fernald |
| | Castilleja puberula Rydb. |
| | Castilleja pulchella Rydb. |
| | Castilleja rhexiifolia Rydb. |
| | Castilleja rubida Piper |
| | Castilleja rupicola Piper ex Fernald |
| | Castilleja rustica Piper |
| | Castilleja scabrida Eastw. |
| | Castilleja schizotricha Greenm. |
| | Castilleja steenensis Pennell |
| | Castilleja viscida Rydb. |
| | Castilleja viscidula A.Gray |
| | Castilleja xanthotricha Pennell |
| | Ceanothus cordulatus Kellogg |
| | Ceanothus fendleri A.Gray |
| | Ceanothus integerrimus Hook. & Arn. |
| | Ceanothus martini M.E.Jones |
| | Ceanothus prostratus Benth. |
| | Ceanothus pumilus Greene |
| | Cerastium beeringianum Cham. & Schltdl. |
| | Cirsium tioganum (Congdon) Petr. trib. Cardueae |
| | Claytonia cordifolia S.Watson |
| | Claytonia lanceolata Pursh |
| | Claytonia megarhiza (A.Gray) Parry ex S.Watson |
| | Claytonia multiscapa Rydb. |
| | Claytonia nevadensis S.Watson |
| | Claytonia obovata Rydb. |
| | Claytonia rosea Rydb. |
| | Claytonia sibirica L. |
| | Claytonia umbellata S.Watson |
| | Clematis columbiana (Nutt.) Torr. & A.Gray |
| | Clematis grosseserrata (Rydb.) Ackerf. |
| | Clematis hirsutissima Pursh |
| | Clematis scottii Porter |
| | Clematis tenuiloba (A.Gray) C.L.Hitchc. |
| | Cochlearia groenlandica L. |
| | Collomia debilis (S.Watson) Greene |
| | Collomia larsenii (A.Gray) Payson |
| | Columbiadoria hallii (A.Gray) G.L.Nesom trib. Astereae |
| | Conimitella williamsii (D.C.Eaton) Rydb. |
| | Coptis aspleniifolia Salisb. |
| | Coptis laciniata A.Gray |
| | Coptis occidentalis (Nutt.) Torr. & A.Gray |
| | Corethrogyne filaginifolia (Hook. & Arn.) Nutt. trib. Astereae |
| | Cornus canadensis L. |
| | Cornus unalaschkensis Ledeb. |
| | Corydalis scouleri Hook. sect. Archaecapnos |
| | Crepis bakeri Greene trib. Cichorieae |
| | Crepis glareosa Piper trib. Cichorieae |
| | Crepis modocensis Greene trib. Cichorieae |
| | Crepis monticola Coville trib. Cichorieae |
| | Crepis occidentalis Nutt. trib. Cichorieae |
| | Crepis pumila Rydb. trib. Cichorieae |
| | Crepis rostrata Coville trib. Cichorieae |
| | Crocanthemum bicknellii (Fernald) Janchen |
| | Cusickiella douglasii (A.Gray) Rollins |
| | Cymopterus albiflorus Torr. & A.Gray |
| | Cymopterus alpinus A.Gray |
| | Cymopterus anisatus A.Gray |
| | Cymopterus bakeri (J.M.Coult. & Rose) M.E.Jones |
| | Cymopterus duchesnensis M.E.Jones |
| | Cymopterus evertii L.R.Hartm. & R.S.Kirkp. |
| | Cymopterus fendleri A.Gray |
| | Cymopterus foeniculaceus Torr. & A.Gray |
| | Cymopterus glaucus Nutt. |
| | Cymopterus glomeratus (Nutt.) DC. |
| | Cymopterus hallii (A.Gray) B.L.Turner |
| | Cymopterus hendersonii (J.M.Coult. & Rose) Cronquist |
| | Cymopterus humilis (Raf.) Tidestr, |
| | Cymopterus ibapensis M.E.Jones |
| | Cymopterus lemmonii (J.M.Coult. & Rose) Dorn |
| | Cymopterus longipes S.Watson |
| | Cymopterus nivalis S.Watson |
| | Cymopterus petraeus M.E.Jones |
| | Cymopterus purpureus S.Watson |
| | Cymopterus sessiliflorus (W.L.Theob. & C.C.Tseng) R.L.Hartm. |
| | Cymopterus williamsii R.L.Hartm. & Constance |
| | |
| | Dalea arenicola (Wemple) B.L.Turner trib. Amorpheae |
| | Dalea aurea Nutt. ex Pursh trib. Amorpheae |
| | Dalea formosa Torr. trib. Amorpheae |
| | Dalea jamesii (Torr.) Torr. & A.Gray trib. Amorpheae |
| | Dalea nana Torr. ex A.Gray trib. Amorpheae |
| | Dalea oligophylla (Torr.) Shinners trib. Amorpheae |
| | Dalea ornata (Douglas ex Hook.) Eaton & Wright trib. Amorpheae |
| | Dalea purpurea Vent. trib. Amorpheae |
| | Dalea tenuifolia (A.Gray) Shinners trib. Amorpheae |
| | Dalea villosa (Nutt.) Spreng. trib. Amorpheae |
| | Dasiphora fruticosa (L.) Rydb. |
| | Delphinium alpestre Rydb. |
| | Delphinium andersonii A.Gray |
| | Delphinium bicolor Nutt. |
| | Delphinium caprorum Ewan |
| | Delphinium decorum Fisch. & C.A.Mey. |
| | Delphinium depauperatum Nutt. |
| | Delphinium glareosum Greene |
| | Delphinium leucophaeum Greene |
| | Delphinium menziesii DC. |
| | Delphinium nudicaule Torr. & A.Gray |
| | Delphinium nuttallianum Pritz. ex Walp. |
| | Delphinium nuttallii A.Gray |
| | Delphinium scaposum Greene |
| | Delphinium xantholeucum Piper |
| | Delwiensia pattersonii (A.Gray) W.A.Weber & R.C.Wittmann trib. Anthemideae |
| | Descurainia kenheilii Al-Shehbaz |
| | Descurainia torulosa Rollins |
| | Dicentra cucullaria (L.) Bernh. |
| | Dicentra formosa (Andrews) Walp. |
| | Dicentra oregona Eastw. |
| | Dicentra pauciflora S.Watson |
| | Dicentra uniflora Kellogg |
| | Diplacus aurantiacus (Curtis) Jeps. |
| | Doellingeria gormanii (Piper) Semple & al. trib. Astereae |
| | Doellingeria paucicapitata (B.L.Rob.) Semple & al. trib. Astereae |
| | Draba albertina Greene |
| | Draba argyrea Rydb. sect. Chrysodraba |
| | Draba aurea Vahl ex Hornem. sect. Phyllodraba |
| | Draba aureola S.Watson sect. Phyllodraba |
| | Draba cana Rydb. |
| | Draba crassa Rydb. sect. Phyllodraba |
| | Draba crassifolia Graham |
| | Draba cusickii B.L.Rob. ex O.E.Schulz sect. Chrysodraba |
| | Draba cyclomorpha Payson |
| | Draba daviesiae (C.L.Hitchc.) Rollins |
| | Draba densifolia Nutt. sect. Chrysodraba |
| | Draba exunguiculata (O.E.Schulz) C.L.Hitchc. sect. Phyllodraba |
| | Draba fladnizensis Wulfen sect. Leucodraba |
| | Draba globosa Payson |
| | Draba graminea Greene sect. Phyllodraba |
| | Draba grayana (Rydb.) C.L.Hitchc. |
| | Draba hitchcockii Rollins |
| | Draba howellii S.Watson sect. Chrysodraba |
| | Draba incerta Payson |
| | Draba lonchocarpa Rydb. sect. Leucodraba |
| | Draba macounii O.E.Schulz sect. Chrysodraba |
| | Draba malpighiacea Windham & Al-Shehbaz |
| | Draba novolympica Payson & H.St.John |
| | Draba oligosperma Hook. sect. Chrysodraba |
| | Draba oreibata J.F.Macbr. & Payson sect. Chrysodraba |
| | Draba paysonii J.F.Macbr. |
| | Draba pectinipila Rollins |
| | Draba porsildii G.A.Mulligan |
| | Draba ruaxes Payson & H.St.John |
| | Draba smithii Gilg ex O.E.Schulz sect. Phyllodraba |
| | Draba spectabilis Greene sect. Phyllodraba |
| | Draba sphaerocarpa J.F.Macbr. & Payson |
| | Draba streptobrachia R.A.Price |
| | Draba streptocarpa A.Gray sect. Phyllodraba |
| | Draba trichocarpa Rollins |
| | Draba ventosa A.Gray sect. Chrysodraba |
| | Draba weberi R.A.Price & Rollins |
| | Dryas drummondii Richardson ex Hook. |
| | Dryas hookeriana Juz. |
| | Drymocallis arguta (Pursh) Rydb. |
| | Drymocallis ashlandica (Greene) Rydb. |
| | Drymocallis fissa (Nutt.) Rydb. |
| | Drymocallis pseudorupestris (Rydb.) Rydb. |
| | Drymocallis pumila Rydb. |
| | Drymocallis rhomboidea (Rydb.) Rydb. |
| | Dudleya farinosa (Lindl.) Britton & Rose |
| | |
| | Elliottia pyroliflora (Bong.) S.W.Brim & P.F.Stevens |
| | Elmera racemosa (S.Watson) Rydb. |
| | Empetrum nigrum L. |
| | Encelia nutans Eastw. trib. Heliantheae |
| | Enceliopsis nudicaulis A.Nelson trib. Heliantheae |
| | Enemion hallii (A.Gray) J.R.Drumm. & Hutch. |
| | Enemion stipitatum (A.Gray) J.R.Drumm. & Hutch. |
| | Epilobium anagallidifolium Lam. |
| | Epilobium arizonicum (Davidson) P.M.Sl. |
| | Epilobium clavatum Trel. |
| | Epilobium fastigiatum (Nutt.) Piper |
| | Epilobium garrettii (A.Nelson) P.M.Sl. |
| | Epilobium glaberrimum Barbey |
| | Epilobium hallianum Hausskn. |
| | Epilobium lactiflorum Hausskn. |
| | Epilobium latifolium L. |
| | Epilobium leptocarpum Hausskn. |
| | Epilobium luteum Pursh |
| | Epilobium mirabile Trel. ex Piper |
| | Epilobium obcordatum A.Gray |
| | Epilobium oregonense Hausskn. |
| | Epilobium rigidum Hausskn. |
| | Epilobium saximontanum Hausskn. |
| | Epilobium siskiyouense (Munz) Hoch & P.H.Raven |
| | Epilobium smithii H.Lév. |
| | Epilobium suffruticosum Nutt. |
| | Eremogone aculeata (S.Watson) Ikonn. |
| | Eremogone americana (Maguire) Ikonn. |
| | Eremogone cephaloidea (Rydb.) P.M.Sl. |
| | Eremogone congesta (Nutt.) Ikonn. |
| | Eremogone crassula (Maguire) P.M.Sl. |
| | Eremogone eastwoodiae (Rydb.) Ikonn. |
| | Eremogone fendleri (A.Gray) Ikonn. |
| | Eremogone franklinii (Douglas ex Hook.) R.L.Hartm. & Rabeler |
| | Eremogone hookeri (Nutt.) W.A.Weber |
| | Eremogone kingii (S.Watson) Ikonn. |
| | Eremogone lithophila (Rydb.) P.M.Sl. |
| | Eremogone pinetorum (A.Nelson) P.M.Sl. |
| | Eremogone prolifera (Maguire) P.M.Sl. |
| | Eremogone pumicola (Coville & Leiberg) Ikonn. |
| | Eremogone suffrutescens (A.Gray) P.M.Sl. |
| | Eremogone uintahensis (A.Nelson) P.M.Sl. |
| | Ericameria bloomeri (A.Gray) J.F.Macbr. trib. Astereae |
| | Ericameria discoidea (Nutt.) G.L.Nesom trib. Astereae |
| | Ericameria greenei (A.Gray) G.L.Nesom trib. Astereae |
| | Ericameria linearis (Rydb.) R.P.Roberts & Urbatsch trib. Astereae |
| | Ericameria montana (L.C.Anderson) P.M.Sl. trib. Astereae |
| | Ericameria nana Nutt. trib. Astereae |
| | Ericameria nauseosa var. nana (Cronquist) G.L.Nesom trib. Astereae |
| | Ericameria resinosa Nutt. trib. Astereae |
| | Ericameria suffruticosa (Nutt.) G.L.Nesom trib. Astereae |
| | Ericameria winwardii (Dorn & Delmatier) R.P.Roberts & al. trib. Astereae |
| | Erigeron aliceae Howell trib. Astereae |
| | Erigeron allocotus S.F.Blake trib. Astereae |
| | Erigeron aphanactis Greene trib. Astereae |
| | Erigeron asperugineus A.Gray trib. Astereae |
| | Erigeron aureus Greene trib. Astereae |
| | Erigeron austiniae Greene trib. Astereae |
| | Erigeron basalticus Hoover trib. Astereae |
| | Erigeron bloomeri A.Gray trib. Astereae |
| | Erigeron caespitosus Nutt. trib. Astereae |
| | Erigeron canus A.Gray trib. Astereae |
| | Erigeron cascadensis A.Heller trib. Astereae |
| | Erigeron cervinus Greene trib. Astereae |
| | Erigeron compositus Pursh trib. Astereae |
| | Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray trib. Astereae |
| | Erigeron condensatus (D.C.Eaton) Greene trib. Astereae |
| | Erigeron confinis Howell trib. Astereae |
| | Erigeron consimilis Cronquist trib. Astereae |
| | Erigeron corymbosus Nutt. trib. Astereae |
| | Erigeron coulteri Porter & J.M.Coult. trib. Astereae |
| | Erigeron disparipilus Cronquist trib. Astereae |
| | Erigeron eatonii A.Gray trib. Astereae |
| | Erigeron elegantulus Greene trib. Astereae |
| | Erigeron engelmannii A.Nelson trib. Astereae |
| | Erigeron evermannii Rydb. trib. Astereae |
| | Erigeron filifolius (Hook.) Nutt. trib. Astereae |
| | Erigeron flabellifolius Rydb. trib. Astereae |
| | Erigeron flagellaris A.Gray trib. Astereae |
| | Erigeron flettii G.N.Jones trib. Astereae |
| | Erigeron formosissimus Greene trib. Astereae |
| | Erigeron glabellus Nutt. trib. Astereae |
| | Erigeron glacialis (Nutt.) A.Nelson trib. Astereae |
| | Erigeron glaucus Ker Gawl. trib. Astereae |
| | Erigeron gracilis Rydb. trib. Astereae |
| | Erigeron grandiflorus Hook. trib. Astereae |
| | Erigeron howellii A.Gray trib. Astereae |
| | Erigeron humilis Graham trib. Astereae |
| | Erigeron chrysopsidis A.Gray trib. Astereae |
| | Erigeron jonesii Cronquist trib. Astereae |
| | Erigeron kachinensis S.L.Welsh & Gl.Moore trib. Astereae |
| | Erigeron klamathensis (G.L.Nesom) G.L.Nesom trib. Astereae |
| | Erigeron lackschewitzii G.L.Nesom & W.A.Weber trib. Astereae |
| | Erigeron lanatus Hook. trib. Astereae |
| | Erigeron latus (A.Nelson & J.F.Macbr.) Cronquist trib. Astereae |
| | Erigeron leibergii Piper trib. Astereae |
| | Erigeron leiomerus A.Gray trib. Astereae |
| | Erigeron linearis (Hook.) Piper trib. Astereae |
| | Erigeron melanocephalus A.Nelson trib. Astereae |
| | Erigeron nanus Nutt. trib. Astereae |
| | Erigeron nematophyllus Rydb. trib. Astereae |
| | Erigeron nivalis Nutt. trib. Astereae |
| | Erigeron nudatus A.Gray trib. Astereae |
| | Erigeron ochroleucus Nutt. trib. Astereae |
| | Erigeron oreganus A.Gray trib. Astereae |
| | Erigeron pacificus Howell |
| | Erigeron parryi Canby & Rose trib. Astereae |
| | Erigeron peregrinus (Pursh) Greene trib. Astereae |
| | Erigeron petrophilus Greene trib. Astereae |
| | Erigeron pinnatisectus (A.Gray) A.Nelson trib. Astereae |
| | Erigeron piperianus Cronquist trib. Astereae |
| | Erigeron plantagineus Greene trib. Astereae |
| | Erigeron poliospermus A.Gray trib. Astereae |
| | Erigeron pulcherrimus A.Heller trib. Astereae |
| | Erigeron pumilus Nutt. trib. Astereae |
| | Erigeron radicatus Hook. trib. Astereae |
| | Erigeron rydbergii Cronquist trib. Astereae |
| | Erigeron salishii G.W.Douglas & Packer trib. Astereae |
| | Erigeron salmonensis Brunsfeld & G.L.Nesom trib. Astereae |
| | Erigeron tener (A.Gray) A.Gray trib. Astereae |
| | Erigeron thompsonii S.F.Blake ex J.W.Thomps. trib. Astereae |
| | Erigeron tweedyi Canby trib. Astereae |
| | Erigeron ursinus D.C.Eaton trib. Astereae |
| | Erigeron utahensis A.Gray trib. Astereae |
| | Erigeron vagus Payson trib. Astereae |
| | Erigeron vetensis Rydb. trib. Astereae |
| | Erigeron villosulus Greene trib. Astereae |
| | Erigeron viscidus Rydb. trib. Astereae |
| | Erigeron watsonii (A.Gray) Cronquist trib. Astereae |
| | Erigeron wilkenii O´Kane trib. Astereae |
| | Eriogonum acaule Nutt. sect. Eucycla |
| | Eriogonum androsaceum Benth. sect. Oligogonum |
| | Eriogonum anserinum Greene sect. Eucycla |
| | Eriogonum arcuatum Greene sect. Oligogonum |
| | Eriogonum bannockense (S.Stokes) R.J.Davis sect. Eucycla |
| | Eriogonum batemanii M.E.Jones sect. Eucycla |
| | Eriogonum bicolor M.E.Jones sect. Eucycla |
| | Eriogonum brandegeei Rydb. sect. Eucycla |
| | Eriogonum brevicaule Nutt. sect. Eucycla |
| | Eriogonum caespitosum Nutt. sect. Oligogonum |
| | Eriogonum calcareum (S.Stokes) Grady & Reveal sect. Eucycla |
| | Eriogonum clavellatum Small sect. Eucycla |
| | Eriogonum codium Reveal, Caplow & K.A.Beck sect. Eucycla |
| | Eriogonum coloradense Small sect. Eucycla |
| | Eriogonum compositum Douglas ex Benth. sect. Oligogonum |
| | Eriogonum contortum Small sect. Eucycla |
| | Eriogonum corymbosum Benth. sect. Eucycla |
| | Eriogonum coryphaeum (Torr. & A.Gray) G.N.Jones sect. Oligogonum |
| | Eriogonum crosbyae Reveal sect. Eucycla |
| | Eriogonum cusickii M.E.Jones sect. Eucycla |
| | Eriogonum depressum (Blank.) Rydb. sect. Eucycla |
| | Eriogonum diclinum Reveal sect. Oligogonum |
| | Eriogonum douglasii Benth. sect. Oligogonum |
| | Eriogonum dumosum Greene sect. Oligogonum |
| | Eriogonum effusum Nutt. sect. Eucycla |
| | Eriogonum elatum Douglas ex Benth. sect. Eucycla |
| | Eriogonum ellipticum Nutt. sect. Oligogonum |
| | Eriogonum ephedroides Reveal sect. Eucycla |
| | Eriogonum exilifolium Reveal sect. Eucycla |
| | Eriogonum fasciculifolium A.Nelson sect. Oligogonum |
| | Eriogonum flavum Nutt. ex Benth. sect. Oligogonum |
| | Eriogonum glaberrimum Gand. sect. Oligogonum |
| | Eriogonum halimoides Gand. sect. Oligogonum |
| | Eriogonum haussknechtii Dammer sect. Oligogonum |
| | Eriogonum heracleoides Nutt. sect. Oligogonum |
| | Eriogonum chrysocephalum A.Gray sect. Eucycla |
| | Eriogonum chrysops Rydb. sect. Eucycla |
| | Eriogonum jamesii Benth. sect. Oligogonum |
| | Eriogonum lachnogynum Torr. ex Benth. sect. Eucycla |
| | Eriogonum latifolium Sm. sect. Eucycla |
| | Eriogonum laxiflorum (Hook.) Nutt. ex Benth. |
| | Eriogonum leptophyllum (Torr.) Wooton & Standl. sect. Eucycla |
| | Eriogonum lobbii Torr. & A.Gray sect. Oligogonum |
| | Eriogonum lonchophyllum Torr. & A.Gray sect. Eucycla |
| | Eriogonum mancum Rydb. sect. Eucycla |
| | Eriogonum marifolium A.Gray sect. Oligogonum |
| | Eriogonum micranthum Nutt sect. Eucycla |
| | Eriogonum microtheca Nutt. sect. Eucycla |
| | Eriogonum modocense Greene sect. Oligogonum |
| | Eriogonum nivale Canby ex Coville sect. Eucycla |
| | Eriogonum niveum Douglas ex Benth. sect. Eucycla |
| | Eriogonum nudum var. paralinum Reveal sect. Eucycla |
| | Eriogonum ochroleucum Small ex Rydb. sect. Eucycla |
| | Eriogonum ovalifolium Nutt. sect. Eucycla |
| | Eriogonum pauciflorum Pursh sect. Eucycla |
| | Eriogonum pelinophilum Reveal sect. Eucycla |
| | Eriogonum pendulum S.Watson sect. Eucycla |
| | Eriogonum piperi Greene sect. Oligogonum |
| | Eriogonum porteri Small sect. Oligogonum |
| | Eriogonum prociduum Reveal sect. Eucycla |
| | Eriogonum proliferum Torr. & A.Gray sect. Eucycla |
| | Eriogonum purpureum (Nutt.) Nutt. ex Benth. sect. Eucycla |
| | Eriogonum pyrolifolium Hook. sect. Oligogonum |
| | Eriogonum racemosum Nutt. sect. Eucycla |
| | Eriogonum rubidum Gand. sect. Eucycla |
| | Eriogonum scopulorum Reveal |
| | Eriogonum shockleyi S.Watson sect. Eucycla |
| | Eriogonum simpsonii Benth. |
| | Eriogonum soliceps Reveal & Björk |
| | Eriogonum sphaerocephalum Douglas ex Benth. sect. Oligogonum |
| | Eriogonum strictum Benth. sect. Eucycla |
| | Eriogonum subalpinum Greene sect. Oligogonum |
| | Eriogonum tenue Small sect. Oligogonum |
| | Eriogonum ternatum Howell sect. Oligogonum |
| | Eriogonum thymoides Benth. sect. Oligogonum |
| | Eriogonum tumulosum (Barneby) Reveal sect. Eucycla |
| | Eriogonum umbellatum Torr. sect. Oligogonum |
| | Eriogonum xanthum Small sect. Oligogonum |
| | Eriophyllum achilleoides (DC.) Greene trib. Helenieae |
| | Eriophyllum grandiflorum (A.Gray) Greene trib. Helenieae |
| | Eriophyllum integrifolium (Hook.) Greene trib. Helenieae |
| | Eriophyllum lanatum (Pursh) J.Forbes trib. Helenieae |
| | Eriophyllum lanceolatum Howell trib. Helenieae |
| | Eriophyllum leucophyllum Howell trib. Helenieae |
| | Eritrichium argenteum W.Wight |
| | Eritrichium howardii (A.Gray) Rydb. |
| | Erocallis triphylla (S.Watson) Rydb. sect. Pygmaea |
| | Eryngium alismifolium Greene |
| | Erysimum amoenum (Greene) Rydb. |
| | Erysimum arenicola S.Watson |
| | Erysimum capitatum (Douglas) Greene |
| | Erysimum occidentale (S.Watson) B.L.Rob. |
| | Erythranthe caespitosa (Greene) G.L.Nesom |
| | Erythranthe cardinalis (Douglas ex Benth.) Spach |
| | Erythranthe dentata (Nutt. ex Benth.) G.L.Nesom |
| | Erythranthe eastwoodiae (Rydb.) G.L.Nesom & N.S.Fraga |
| | Erythranthe geyeri (Torr.) G.L.Nesom |
| | Erythranthe jungermannioides (Suksd.) G.L.Nesom |
| | Erythranthe lewisii (Pursh) G.L.Nesom & N.S.Fraga |
| | Erythranthe minor (A.Nelson) G.L.Nesom |
| | Erythranthe moschata (Douglas ex Lindl.) G.L.Nesom |
| | Erythranthe primuloides (Benth.) G.L.Nesom & N.S.Fraga |
| | Erythranthe tilingii (Regel) G.L.Nesom |
| | Erythranthe utahensis (Pennell) G.L.Nesom |
| | Euphorbia albomarginata Torr. & Gray |
| | Euphorbia brachycera Engelm. |
| | Euphorbia fendleri Torr. & A.Gray |
| | Eurybia aberrans (A.Nelson) G.L.Nesom trib. Astereae |
| | Eurybia merita (A.Nelson) G.L.Nesom trib. Astereae |
| | Eurybia sibirica (L.) G.L.Nesom trib. Astereae |
| | Evolvulus nuttallianus Roem. & Schult. |
| | |
| | Fallugia paradoxa (D.Don ex Tilloch) Endl. ex Torr. |
| | Frasera albicaulis Griseb. |
| | Frasera albomarginata S.Watson |
| | Frasera coloradensis (C.M.Rodgers) D.M.Post |
| | Frasera cusickii A.Gray |
| | Frasera fastigiata (Pursh) A.Heller |
| | Frasera induta Tidestr. |
| | Frasera montana Mulford |
| | Frasera nitida Benth. |
| | |
| | Gaillardia aristata Pursh trib. Heliantheae |
| | Gaillardia pinnatifida Torr. trib. Heliantheae |
| | Gaillardia spathulata A.Gray trib. Heliantheae |
| | Galium coloradoense W.Wight |
| | Galium kamtschaticum Steller ex Schult. & Schult.f. |
| | Gaultheria hispidula (L.) Muhl. ex Bigelow |
| | Gaultheria humifusa (Graham) Rydb. |
| | Gaultheria ovatifolia A.Gray |
| | Gaultheria shallon Pursh |
| | Gentiana affinis Griseb. sect. Pneumonanthe |
| | Gentiana algida Pall. sect. Frigidae |
| | Gentiana andrewsii Griseb. sect. Pneumonanthe |
| | Gentiana calycosa Griseb. sect. Pneumonanthe |
| | Gentiana glauca Pall. sect. Isomeria |
| | Gentiana newberryi A.Gray sect. Pneumonanthe |
| | Gentiana oregana Engl. ex A.Gray sect. Pneumonanthe |
| | Gentiana parryi Engelm. sect. Pneumonanthe |
| | Gentiana plurisetosa C.T.Mason sect. Pneumonanthe |
| | Gentiana sceptrum Griseb. sect. Pneumonanthe |
| | Gentiana setigera A.Gray sect. Pneumonanthe |
| | Gentianopsis barbellata (Engelm.) Iltis |
| | Geranium caespitosum E.James |
| | Geranium richardsonii Fisch. & Trautv. |
| | Geranium viscosissimum Fisch. & C.A.Mey. |
| | Geum ciliatum Pursh |
| | Geum rossii (R.Br.) Ser. |
| | Geum triflorum Pursh |
| | Geum turbinatum Rydb. |
| | Giliastrum acerosum (A.Gray) Rydb. |
| | Grayia spinosa (Hook.) Moq. |
| | Gutierrezia sarothrae (Pursh) Britton & Rusby trib. Astereae |
| | |
| | Hackelia arida I.M.Johnst. |
| | Hackelia cottonii (Piper) Brand |
| | Hackelia cusickii (Piper) Brand |
| | Hackelia diffusa (Douglas ex Lehm.) I.M.Johnst. |
| | Hackelia micrantha (Eastw.) J.L.Gentry |
| | Hackelia ophiobia R.L.Carr |
| | Hackelia patens (Nutt.) I.M.Johnst. |
| | Hackelia taylorii Harrod & al. |
| | Hackelia venusta (Piper) H.St.John |
| | Hedysarum boreale Nutt. trib. Hedysareae |
| | Hedysarum mackenzie Richardson trib. Hedysareae |
| | Hedysarum sulphurescens Rydb. trib. Hedysareae |
| | Helianthella parryi A.Gray trib. Heliantheae |
| | Hemieva ranunculifolia Raf. |
| | Hesperochiron nanus (Lindl.) Greene |
| | Hesperochiron pumilus (Griseb.) Porter |
| | Heterotheca ballardii (Rydb.) G.L.Nesom trib. Astereae |
| | Heterotheca depressa (Rydb.) Dorn trib. Astereae |
| | Heterotheca hirsutissima (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca oregona (Nutt.) Shinners trib. Astereae |
| | Heterotheca polothrix G.L.Nesom trib. Astereae |
| | Heterotheca pumila (Greene) Semple trib. Astereae |
| | Heterotheca rudis (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca villosa (Pursh) Shinners trib. Astereae |
| | Heuchera bracteata (Torr.) Ser. |
| | Heuchera cylindrica Douglas |
| | Heuchera diversifolia Rydb. |
| | Heuchera glabra Willd. ex Schult. |
| | Heuchera gracilis Rydb. |
| | Heuchera grossulariifolia Rydb. |
| | Heuchera hallii A.Gray |
| | Heuchera hartwegii (S.Watson ex Wheelock) Rydb. |
| | Heuchera lloydii Rydb. |
| | Heuchera merriamii Eastw. |
| | Heuchera micrantha Douglas |
| | Heuchera parvifolia Nutt. |
| | Heuchera pilosissima Fisch. & C.A.Mey. |
| | Heuchera richardsonii R.Br. |
| | Heuchera rubescens Torr. |
| | Hieracium bolanderi A.Gray trib. Cichorieae |
| | Hieracium horridum Fr. trib. Cichorieae |
| | Hieracium triste Willd. ex Spreng. trib. Cichorieae |
| | Hoffmannseggia glauca (Ortega) Eifert trib. Caesalpinieae |
| | Hosackia oblongifolia Benth. trib. Loteae |
| | Hulsea algida A.Gray trib. Helenieae |
| | Hulsea nana A.Gray trib. Helenieae |
| | Hydrophyllum albifrons A.Heller |
| | Hydrophyllum alpestre A.Nelson & P.B.Kenn. |
| | Hydrophyllum capitatum Douglas ex Benth. |
| | Hydrophyllum fendleri (A.Gray) A.Heller |
| | Hydrophyllum occidentale (S.Watson) A.Gray |
| | Hydrophyllum tenuipes A.Heller |
| | Hydrophyllum thompsonii M.Peck |
| | Hymenoxys brandegeei (Porter ex A.Gray) K.F.Parker trib. Helenieae |
| | Hymenoxys floribunda Cockerell trib. Helenieae |
| | Hymenoxys grandiflora (Torr. & A.Gray) K.F.Parker trib. Helenieae |
| | Hymenoxys helenioides (Rydb.) Cockerell trib. Helenieae |
| | Hymenoxys richardsonii (Hook.) Cockerell trib. Helenieae |
| | Hypericum anagalloides Cham. & Schltdl. sect. Trigynobrathys |
| | Hypericum scouleri Hook. sect. Hypericum |
| | |
| | Chaenactis alpina (A.Gray) M.E.Jones |
| | Chaenactis douglasii Hook. & Arn. trib. Helenieae |
| | Chaenactis evermannii Greene trib. Helenieae |
| | Chaenactis suffrutescens A.Gray trib. Helenieae |
| | Chaenactis thompsonii Cronquist trib. Helenieae |
| | Chaetopappa ericoides (Torr.) G.L.Nesom trib. Astereae |
| | Chamaechaenactis scaposa Rydb. trib. Helenieae |
| | Chamaerhodos erecta (L.) Bunge |
| | Cherleria biflora (L.) A.J.Moore & Dillenb. |
| | Cherleria obtusiloba (Rydb.) A.J.Moore & Dillenb. |
| | Chimaphila menziesii (R.Br. ex D.Don) Spreng. |
| | Chimaphila umbellata (L.) W.P.C.Barton |
| | Chionophila jamesii Benth. trib. Cheloneae |
| | Chionophila tweedyi (Canby & Rose) L.F.Hend. trib. Cheloneae |
| | Chrysothamnus axillaris D.D.Keck trib. Astereae |
| | Chrysothamnus depressus (Nutt.) L.C.Anderson trib. Astereae |
| | Chrysothamnus humilis Greene trib. Astereae |
| | Chrysothamnus lanceolatus Nutt. trib. Astereae |
| | Chrysothamnus vaseyi Greene trib. Astereae |
| | Chrysothamnus viscidiflorus Nutt. trib. Astereae |
| | |
| | Ionactis alpina (Nutt.) Greene trib. Astereae |
| | Ionactis stenomeres (A.Gray) Greene trib. Astereae |
| | Ipomopsis congesta (Hook.) V.E.Grant |
| | Ipomopsis longiflora (Torr.) V.E.Grant |
| | Ipomopsis polyantha (Rydb.) V.E.Grant |
| | Ipomopsis roseata (Rydb.) V.E.Grant |
| | Ipomopsis spicata (Nutt.) V.E.Grant |
| | Ipomopsis tenuituba (Rydb.) V.E.Grant |
| | Iris bracteata S.Watson |
| | Iris chrysophylla Howell |
| | Iris innominata L.F.Hend. |
| | |
| | Kalmia microphylla (Hook.) A.Heller |
| | Kalmia occidentalis Small |
| | Kalmia procumbens (L.) Gift & al. ex Galasso & al. |
| | Kalmiopsis leachiana (L.F.Hend.) Rehder |
| | Kelseya uniflora (S.Watson) Rydb. |
| | Koenigia davisiae (W.H.Brewer) T.M.Schuster & Reveal |
| | Koenigia phytolaccifolia (Small) T.M.Schuster & Reveal |
| | Krascheninnikovia lanata (Pursh) A.Meeuse & A.Smit |
| | |
| | Lathyrus bijugatus T.G.White trib. Vicieae |
| | Lathyrus brachycalyx Rydb. trib. Vicieae |
| | Lathyrus decaphyllus Pursh trib. Vicieae |
| | Lathyrus incanus (J.G.Sm. & Rydb.) Rydb. trib. Vicieae |
| | Lathyrus rigidus T.G.White trib. Vicieae |
| | Lathyrus torreyi S.Watson trib. Vicieae |
| | Lathyrus zionis C.L.Hitch. trib. Vicieae |
| | Lepidium davisii Rollins |
| | Lepidium integrifolium Nutt. |
| | Lepidium montanum Nutt. |
| | Leptarrhena pyrolifolia (D.Don) Ser. |
| | Leptosiphon nuttallii (A.Gray) J.M.Porter & L.A.Johnson |
| | Leucophysalis nana (A.Gray) Averett |
| | Leucothoë davisiae Torr. |
| | Lewisia columbiana (Howell ex A.Gray) B.L.Rob. sect. Cotyledon |
| | Lewisia cotyledon (S.Watson) B.L.Rob. sect. Cotyledon |
| | Lewisia howellii (S.Watson) B.L.Rob. sect. Cotyledon |
| | Lewisia kelloggii K.Brandegee sect. Pygmaea |
| | Lewisia leeana (Porter) B.L.Rob. sect. Cotyledon |
| | Lewisia nevadensis (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia oppositifolia (S.Watson) B.L.Rob. sect. Pygmaea |
| | Lewisia pygmaea (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia rediviva Pursh sect. Rediviva |
| | Lewisia rupicola English sect. Cotyledon |
| | Lewisia wallowensis (C.L.Hitchc.) P.M.Sl. sect. Cotyledon |
| | Lewisiopsis tweedyi (A.Gray) Govaerts |
| | Liatris punctata Hook. trib. Eupatorieae |
| | Linanthus caespitosus (Nutt.) J.M.Porter & L.A.Johnson |
| | Linanthus hazeliae (M.Peck) P.M.Sl. |
| | Linanthus hookeri (Douglas ex Hook.) P.M.Sl. |
| | Linanthus pungens (Torr.) J.M.Porter & L.A.Johnson |
| | Linanthus watsonii (A.Gray) Wherry |
| | Linum kingii S.Watson |
| | Linum lewisii Pursh |
| | Lithophragma affine A.Gray |
| | Lithophragma glabrum Nutt. |
| | Lithophragma heterophyllum (Hook. & Arn.) Torr. & A.Gray |
| | Lithophragma parviflorum (Hook.) Nutt. |
| | Lithophragma tenellum Nutt. |
| | Lithospermum californicum A.Gray |
| | Lithospermum incisum Lehm. |
| | Lobelia kalmii L. |
| | Lomatium ambiguum (Nutt.) J.M.Coult. & Rose |
| | Lomatium attenuatum Evert |
| | Lomatium bradshawii (Rose) Mathias & Constance |
| | Lomatium canbyi (J.M.Coult. & Rose) J.M.Coulter & Rose |
| | Lomatium columbianum Mathias & Constance |
| | Lomatium cous (S.Watson) J.M.Coult. & Rose |
| | Lomatium cusickii (S.Watson) J.M.Coult. & Rose |
| | Lomatium cuspidatum Mathias & Constance |
| | Lomatium donnellii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium eastwoodiae (J.M.Coult. & Rose) J.F.Macbr. |
| | Lomatium engelmannii Mathias |
| | Lomatium foeniculaceum (Nutt.) J.M.Coult. & Rose |
| | Lomatium fusiformis (S.Watson) J.F.Sm. & Mansfield |
| | Lomatium geyeri (S.Watson) J.M.Coult. & Rose |
| | Lomatium gormanii (Howell) J.M.Coult. & Rose |
| | Lomatium grayi (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium greenmanii Mathias |
| | Lomatium hallii (S.Watson) J.M.Coult. & Rose |
| | Lomatium hendersonii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium inyoense Mathias & Constance |
| | Lomatium juniperinum (M.E.Jones) J.M.Coult. & Rose |
| | Lomatium laevigatum J.M.Coult. & Rose |
| | Lomatium latilobum (Rydb.) Mathias |
| | Lomatium linearifolium (S.Watson) J.F.Sm. & Mansfield |
| | Lomatium lithosolamans J.F.Sm. & M.A.Feist |
| | Lomatium macdougalii J.M.Coult. & Rose |
| | Lomatium macrocarpum (Hook. & Arn.) L.M.Coult. & Rose |
| | Lomatium martindalei (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium minus (Rose ex Howell) Mathias & Constance |
| | Lomatium mohavense (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium nevadense (S.Watson) J.M.Coult. & Rose |
| | Lomatium nuttallii (A.Gray) J.F.Macbr. |
| | Lomatium oreganum (J.M.Coult. & Rose) J.M.Coulter & Rose |
| | Lomatium orientale J.M.Coult. & Rose |
| | Lomatium piperi J.M.Coulter & Rose |
| | Lomatium planosum (Osterh.) Mansfield & S.R.Downie |
| | Lomatium ravenii var. paiutense K.M.Carlson & Mansfield |
| | Lomatium roneorum Darrach |
| | Lomatium roseanum Cronquist |
| | Lomatium sandbergii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium serpentinum (M.E.Jones) Mathias |
| | Lomatium tenuissimum (Geyer ex Hook.) M.A.Feist & Plunkett |
| | Lomatium thompsonii (Mathias) Cronquist |
| | Lomatium tracyi Mathias & Constance |
| | Lomatium tuberosum Hoover |
| | Lomatium utriculatum (Nutt.) J.M.Coult. & Rose |
| | Lomatium vaginatum J.M.Coult. & Rose |
| | Lomatium watsonii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lonicera interrupta Benth. |
| | Lorandersonia microcephala (Cronquist) Urbatsch & al. trib. Astereae |
| | Luetkea pectinata (Pursh) Kuntze |
| | Luina hypoleuca Benth. trib. Senecioneae |
| | Luina serpentina Cronquist trib. Senecioneae |
| | Lupinus argenteus Pursh trib. Genisteae |
| | Lupinus aridus Douglas trib. Genisteae |
| | Lupinus brachypodus Piper trib. Genisteae |
| | Lupinus breweri A.Gray trib. Genisteae |
| | Lupinus caespitosus Nutt. trib. Genisteae |
| | Lupinus crassus Payson trib. Genisteae |
| | Lupinus cusickii S.Watson trib. Genisteae |
| | Lupinus depressus Rydb. trib. Genisteae |
| | Lupinus evermannii Rydb. trib. Genisteae |
| | Lupinus fruticulosus Greene trib. Genisteae |
| | Lupinus fulvomaculatus Payson trib. Genisteae |
| | Lupinus holosericeus Nutt. trib. Genisteae |
| | Lupinus hypoleucus Greene trib. Genisteae |
| | Lupinus lapidicola A.Heller trib. Genisteae |
| | Lupinus laxiflorus Douglass ex Lindl. trib. Genisteae |
| | Lupinus lepidus Douglas ex Lindl. trib. Genisteae |
| | Lupinus littoralis Douglas ex Lindl. trib. Genisteae |
| | Lupinus lobbii A.Gray ex S.Watson trib. Genisteae |
| | Lupinus lyallii A.Gray trib. Genisteae |
| | Lupinus minimus Douglas trib. Genisteae |
| | Lupinus minutifolius Eastw. trib. Genisteae |
| | Lupinus monticola Rydb. trib. Genisteae |
| | Lupinus nevadensis A.Heller trib. Genisteae |
| | Lupinus onustus S.Watson trib. Genisteae |
| | Lupinus parviflorus Nutt. ex. Hook. & Arn. trib. Genisteae |
| | Lupinus roseolus Rydb. trib. Genisteae |
| | Lupinus saxosus Howell trib. Genisteae |
| | Lupinus sericeus Pursh trib. Genisteae |
| | Lupinus watsonii A.Heller trib. Genisteae |
| | Lygodesmia arizonica Tomb. trib. Cichorieae |
| | Lygodesmia dianthopsis (D.C.Eaton) Tomb trib. Cichorieae |
| | Lygodesmia doloresensis Tomb trib. Cichorieae |
| | Lygodesmia grandiflora (Nutt.) Torr. & A.Gray trib. Cichorieae |
| | Lygodesmia juncea (Pursh) D.Don ex Hook. trib. Cichorieae |
| | Lysimachia europaea (L.) U.Manns & Anderb. |
| | |
| | Melampodium leucanthum Torr. & A.Gray trib. Heliantheae |
| | Melanocalyx uniflora (L.) Morin |
| | Menodora scabra Engelm. ex A.Gray |
| | Mentzelia acerosa M.E.Jones |
| | Mentzelia decapetala (Sims) Urb. |
| | Mentzelia laevicaulis (Douglas ex Hook.) Torr. & A.Gray |
| | Mentzelia nuda (Pursh) Torr. & A.Gray |
| | Mentzelia oligosperma Nutt. ex Sims |
| | Menyanthes trifoliata L. |
| | Mertensia arizonica Greene |
| | Mertensia bakeri Greene |
| | Mertensia bella Piper |
| | Mertensia brachyloba Greene |
| | Mertensia brevistyla S.Watson |
| | Mertensia campanulata A.Nelson |
| | Mertensia cana Rydb. |
| | Mertensia ciliata (E.James ex Torr.) G.Don |
| | Mertensia coriacea A.Nelson |
| | Mertensia cusickii Piper |
| | Mertensia cynoglossoides Greene |
| | Mertensia fendleri A.Gray |
| | Mertensia franciscana A.Heller |
| | Mertensia humilis Rydb. |
| | Mertensia lanceolata (Pursh) DC. |
| | Mertensia lateriflora Greene |
| | Mertensia longiflora Greene |
| | Mertensia oblongifolia (Nutt.) G.Don |
| | Mertensia ovata Rydb. |
| | Mertensia paniculata (Aiton) G.Don |
| | Mertensia parvifolia (L.O.Williams) Nazaire & L.Hufford |
| | Mertensia secundorum Cockerell |
| | Mertensia stomatechoides Kellogg |
| | Mertensia tweedyi Rydb. |
| | Mertensia viridis (A.Nelson) A.Nelson |
| | Micranthes apetala (Piper) Small sect. Micranthes |
| | Micranthes aprica (Greene) Small sect. Micranthes |
| | Micranthes bryophora (A.Gray) Brouillet & Gornall sect. Arabisa |
| | Micranthes californica (Greene) Small sect. Micranthes |
| | Micranthes cascadensis (Calder & Saville) P.M.Sl. sect. Calthophyllum |
| | Micranthes ferruginea (Graham) Brouillet & Gornall sect. Arabisa |
| | Micranthes foliolosa (R.Br.) Gornall sect. Arabisa |
| | Micranthes fragosa (Suksd. ex Small) Small sect. Micranthes |
| | Micranthes gormanii (Suksd.) Brouillet & Gornall sect. Dermasea |
| | Micranthes hieraciifolia (Waldst. & Kit. ex Willd.) Haw. sect. Micranthes |
| | Micranthes hitchcockiana (Elvander) Brouillet & Gornall sect. Micranthes |
| | Micranthes howellii (Greene) Small sect. Dermasea |
| | Micranthes idahoensis (Piper) Brouillet & Gornall sect. Dermasea |
| | Micranthes integrifolia (Hook.) Small sect. Micranthes |
| | Micranthes lyallii (Engl.) Small sect. Calthophyllum |
| | Micranthes marshallii (Greene) Small sect. Dermasea |
| | Micranthes mertensiana (Bong.) Rosend. |
| | Micranthes nidifica (Greene) Small sect. Micranthes |
| | Micranthes occidentalis (S.Watson) Small sect. Dermasea |
| | Micranthes oregana (Howell) Small sect. Micranthes |
| | Micranthes rhomboidea (Greene) Small sect. Micranthes |
| | Micranthes rufidula Small sect. Dermasea |
| | Micranthes subapetala (E.Nelson) Small sect. Micranthes |
| | Micranthes tempestiva (Elvander & Denton) Gornall sect. Micranthes |
| | Micranthes tischii (Skelly) Brouillet & Gornall sect. Dermasea |
| | Micranthes tolmiei (Torr. & A.Gray) Brouillet & Gornall sect. Intermediae |
| | Micromeria douglasii Benth. |
| | Microseris alpestris (A.Gray) Q.Jones ex Cronquist trib. Cichorieae |
| | Microseris cuspidata (Pursh) Sch.Bip. trib. Cichorieae |
| | Microseris nigrescens L.F.Hend. trib. Cichorieae |
| | Microseris troximoides A.Gray trib. Cichorieae |
| | Mitella nuda L. |
| | Mitellastra caulescens (Nutt.) Howell |
| | Moehringia lateriflora (L.) Fenzl |
| | Monarda fistulosa L. |
| | Monarda menthifolia Graham |
| | Monardella discolor Greene |
| | Monardella glauca Greene |
| | Monardella odoratissima Benth. |
| | Monardella pallida A.Heller |
| | Monardella purpurea Howell |
| | Monardella sheltonii Torr. ex Durand |
| | Monardella subserrata Greene |
| | Moneses uniflora (L.) A.Gray |
| | Montia chamissoi (Ledeb. ex Spreng.) Greene |
| | Montia parvifolia (Moc. ex DC.) Greene |
| | Musineon divaricatum (Pursh) Nutt. |
| | Musineon hookeri (Torr. & A.Gray) Nutt. |
| | Musineon lineare (Rydb.) Mathias |
| | Musineon tenuifolium Nutt. |
| | Musineon vaginatum Rydb. |
| | Myosotis asiatica (Vestergr.) Schischk. & Serg. |
| | |
| | Nama lobbii A.Gray |
| | Neoparrya lithophila Mathias |
| | Nestotus andersonii (Rydb.) P.M.Sl. trib. Astereae |
| | Nestotus lanuginosus (A.Gray) G.L.Nesom trib. Astereae |
| | Nestotus stenophyllus (A.Gray) R.P.Roberts & al. trib. Astereae |
| | Noccaea fendleri (A.Gray) Holub |
| | Noccaea glauca (A.Nelson) Holub |
| | Noccaea idahoense (Payson) ined. |
| | Noccaea siskiyouense (P.K.Holmgren) P.M.Sl. |
| | |
| | Oenothera acutissima W.L.Wagner sect. Lavauxia |
| | Oenothera albicaulis Pursh sect. Anogra |
| | Oenothera canescens Torr. & Frém. sect. Gauropsis |
| | Oenothera cespitosa Nutt. sect. Pachylophus |
| | Oenothera coronopifolia Torr. & A.Gray sect. Kleinia |
| | Oenothera deltoides Torr. & Frém. sect. Anogra |
| | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| | Oenothera greggii A.Gray sect. Calylophus |
| | Oenothera hartwegii Benth. sect. Calylophus |
| | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| | Oenothera latifolia (Rydb.) Munz sect. Anogra |
| | Oenothera lavandulifolia Torr. & A.Gray sect. Calylophus |
| | Oenothera marginata Nutt. ex Hook. & Arn. sect. Pachylophus |
| | Oenothera pallida Lindl. sect. Anogra |
| | Oenothera perennis L. sect. Kneiffia |
| | Oenothera psammophila (A.Nelson & J.F.Macbr.) Wagner et al. sect. Pachylophus |
| | Oenothera runcinata (Engelm.) Munz sect. Anogra |
| | Oenothera serrulata Nutt. sect. Calylophus |
| | Oenothera trichocalyx Nutt. sect. Anogra |
| | Oönopsis engelmannii (A.Gray) Greene trib. Astereae |
| | Oönopsis foliosa (Torr. & A.Gray) Greene trib. Astereae |
| | Oönopsis monocephala A.Nelson trib. Astereae |
| | Oönopsis multicaulis Greene trib. Astereae |
| | Oönopsis wardii (A.Gray) Greene trib. Astereae |
| | Oreocarya aperta Eastw. |
| | Oreocarya bakeri Greene |
| | Oreocarya breviflora Osterh. |
| | Oreocarya caespitosa A.Nelson |
| | Oreocarya cana A.Nelson |
| | Oreocarya cinerea Greene |
| | Oreocarya flava A.Nelson |
| | Oreocarya flavoculata A.Nelson |
| | Oreocarya fulvocanescens (S.Watson) Greene |
| | Oreocarya glomerata (Fraser ex Pursh) Greene |
| | Oreocarya humilis (A.Gray) Greene |
| | Oreocarya interrupta Greene |
| | Oreocarya leucophaea (Douglas ex Lehm.) Greene |
| | Oreocarya longiflora A.Nelson |
| | Oreocarya nitida Greene |
| | Oreocarya nubigena Greene |
| | Oreocarya osterhoutii Payson |
| | Oreocarya paradoxa A.Nelson |
| | Oreocarya propria A.Nelson & J.F.Macbr. |
| | Oreocarya rollinsii (I.M.Johnst.) W.A.Weber |
| | Oreocarya salmonensis A.Nelson & J.F.Macbr. |
| | Oreocarya sericea (A.Gray) Greene |
| | Oreocarya schoolcraftii (Tiehm) R.B.Kelley |
| | Oreocarya sobolifera (Payson) R.B.Kelley |
| | Oreocarya spiculifera Piper |
| | Oreocarya subcapitata (Dorn & Lichvar) R.B.Kelley |
| | Oreocarya suffruticosa (Torr.) Greene |
| | Oreocarya thompsonii (I.M.Johnst.) Abrams |
| | Oreomecon pygmaeum (Rydb.) P.M.Sl. |
| | Oreostemma alpigenum (Torr. & A.Gray) Greene trib. Astereae |
| | Oreostemma andersonii (A.Gray) Greene trib. Astereae |
| | Oreostemma haydenii (Porter) Greene trib. Astereae |
| | Orthilia secunda (L.) House |
| | Oxalis caerulea (Small) R.Knuth |
| | Oxalis metcalfei (Small) R.Knuth |
| | Oxalis oregana Nutt. |
| | Oxalis suksdorfii Trel. |
| | Oxalis trilliifolia Hook. |
| | Oxyria digyna (L.) Hill |
| | Oxytropis arctica R.Br. sect. Orobia |
| | Oxytropis argophylla (Rydb.) P.M.Sl. trib. Galegeae |
| | Oxytropis atropurpurea (Rydb.) A.Nelson trib. Galegeae |
| | Oxytropis besseyi (Rydb.) Blank. trib. Galegeae |
| | Oxytropis columbiana H.St.John sect. Orobia |
| | Oxytropis cusickii Greenm. sect. Orobia |
| | Oxytropis davisii (S.L.Welsh) Jurtzev sect. Orobia |
| | Oxytropis foliolosa Hook. sect. Mesogaea |
| | Oxytropis lagopus Nutt. trib. Galegeae |
| | Oxytropis lambertii Pursh trib. Galegeae |
| | Oxytropis monticola A.Gray sect. Orobia |
| | Oxytropis multiceps Nutt. trib. Galegeae |
| | Oxytropis nana Nutt. trib. Galegeae |
| | Oxytropis obnapiformis Ced.Porter trib. Galegeae |
| | Oxytropis parryi A.Gray trib. Galegeae |
| | Oxytropis patens (Rydb.) A.Nelson trib. Galegeae |
| | Oxytropis podocarpa A.Gray trib. Galegeae |
| | Oxytropis retrorsa Fernald sect. Mesogaea |
| | Oxytropis sericea Nutt. trib. Galegeae |
| | Oxytropis splendens Douglas trib. Galegeae |
| | Oxytropis ventosa (Greene) P.M.Sl. trib. Galegeae |
| | Oxytropis viscida Nutt. trib. Galegeae |
| | Ozomelis stauropetala (Piper) Rydb. |
| | Ozomelis trifida (Graham) Rydb. |
| | |
| | Packera cana (Hook.) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera contermina (Greenm.) J.F.Bain trib. Senecioneae |
| | Packera dimorphophylla (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera flettii (Wiegand) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera hesperia (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera malmstenii (S.F.Blake ex Tidestr.) Kartesz trib. Senecioneae |
| | Packera pauciflora (Pursh) Á.Löve & D.Löve trib. Senecioneae |
| | Packera porteri (Greene) C.Jeffrey trib. Senecioneae |
| | Packera subnuda (DC.) Trock & T.M.Barkley trib. Senecioneae |
| | Packera thurberi (A.Gray) B.L.Turner trib. Senecioneae |
| | Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve trib. Senecioneae |
| | Paeonia brownii Douglas ex Hook. |
| | Parnassia cirrata Piper |
| | Parnassia fimbriata K.D.Koenig |
| | Parnassia intermedia Rydb. |
| | Parnassia kotzebuei Cham. ex Spreng. |
| | Parnassia palustris L. |
| | Parnassia parviflora DC. |
| | Paronychia depressa (Torr. & A.Gray) Nutt. ex A.Nelson |
| | Paronychia jamesii Torr. & A.Gray |
| | Paronychia pulvinata A.Gray |
| | Paronychia sessiliflora Nutt. |
| | Parrya rydbergii Botsch. |
| | Parthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae |
| | Parthenium ligulatum (M.E.Jones) Barneby trib. Heliantheae |
| | Paxistima myrsinites (Pursh) Raf. |
| | Pectiantia pentandra (Hook.) Rydb. |
| | Pedicularis canbyi A.Gray |
| | Pedicularis centranthera A.Gray |
| | Pedicularis lanata Cham. & Schltdl. |
| | Pedicularis oederi Vahl |
| | Pedicularis ornithorhynchos Benth. |
| | Pedicularis pulchella Pennell |
| | Pedicularis racemosa Douglas ex Benth. |
| | Pedicularis scopulorum A.Gray |
| | Pedicularis semibarbata A.Gray |
| | Pediomelum esculentum (Pursh) Rydb. trib. Psoraleeae |
| | Pediomelum hypogaeum (Nutt.) Rydb. trib. Psoraleeae |
| | Pediomelum megalanthum (Wooton & Standl.) Rydb. trib. Psoraleeae |
| | Penstemon absarokensis Evert sect. Glabri |
| | Penstemon acaulis L.O.Williams sect. Cristati |
| | Penstemon acuminatus Douglas ex Lindl. sect. Coerulei |
| | Penstemon aggregatus Pennell sect. Penstemon |
| | Penstemon albertinus Greene sect. Penstemon |
| | Penstemon albidus Nutt. sect. Cristati |
| | Penstemon alpinus Torr. sect. Glabri |
| | Penstemon ambiguus Torr. sect. Ambigui |
| | Penstemon anguineus Eastw. sect. Penstemon |
| | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| | Penstemon arenicola A.Nelson sect. Coerulei |
| | Penstemon aridus Rydb. sect. Penstemon |
| | Penstemon attenuatus Douglas sect. Penstemon |
| | Penstemon auriberbis Pennell sect. Cristati |
| | Penstemon azureus Benth. sect. Saccanthera |
| | Penstemon barrettiae A.Gray sect. Erianthera |
| | Penstemon berryi Eastw. sect. Erianthera |
| | Penstemon bradburyi Pursh sect. Coerulei |
| | Penstemon brachyanthus Pennell sect. Penstemon |
| | Penstemon brandegeei (Porter) Rydb. sect. Glabri |
| | Penstemon breviculus (D.D.Keck) G.T.Nisbet & R.C.Jacks. sect. Cristati |
| | Penstemon buckleyi Pennell sect. Coerulei |
| | Penstemon caespitosus Nutt. ex A.Gray sect. Caespitosi |
| | Penstemon cardwellii Howell sect. Erianthera |
| | Penstemon caryi Pennell sect. Glabri |
| | Penstemon caudatus A.Heller sect. Coerulei |
| | Penstemon cinicola D.D.Keck sect. Penstemon |
| | Penstemon cleburnei M.E.Jones sect. Erianthera |
| | Penstemon coloradoensis A.Nelson sect. Caespitosi |
| | Penstemon comarrhenus A.Gray sect. Glabri |
| | Penstemon compactus (D.D.Keck) Crosswh. sect. Glabri |
| | Penstemon confertus Douglas sect. Penstemon |
| | Penstemon crandallii A.Nelson sect. Caespitosi |
| | Penstemon cusickii A.Gray sect. Saccanthera |
| | Penstemon cyananthus Hook. sect. Glabri |
| | Penstemon cyaneus Pennell sect. Glabri |
| | Penstemon cyanocaulis Payson sect. Glabri |
| | Penstemon cyathophorus Rydb. sect. Coerulei |
| | Penstemon davidsonii Greene sect. Erianthera |
| | Penstemon dayanus Howell sect. Erianthera |
| | Penstemon debilis O‘Kane & J.L.Anderson sect. Glabri |
| | Penstemon degeneri Crosswh. sect. Penstemon |
| | Penstemon deustus Douglas sect. Penstemon |
| | Penstemon diphyllus Rydb. sect. Saccanthera |
| | Penstemon douglasii Hook. sect. Erianthera |
| | Penstemon elegantulus Pennell sect. Penstemon |
| | Penstemon ellipticus J.M.Coult. & Fisher sect. Erianthera |
| | Penstemon eriantherus Nutt. ex Pursh sect. Cristati |
| | Penstemon euglaucus English sect. Penstemon |
| | Penstemon exilifolius A.Nelson sect. Cristati |
| | Penstemon flavescens Pennell sect. Penstemon |
| | Penstemon formosus A.Nelson sect. Penstemon |
| | Penstemon fremontii Torr. & A.Gray sect. Glabri |
| | Penstemon fruticosus (Pursh) Greene sect. Erianthera |
| | Penstemon gairdneri Hook. sect. Penstemon |
| | Penstemon gibbensii Dorn sect. Glabri |
| | Penstemon glaber Pursh sect. Glabri |
| | Penstemon glabrescens Pennell sect. Caespitosi |
| | Penstemon glaucinus Pennell sect. Penstemon |
| | Penstemon globosus (Piper) Pennell & D.D.Keck sect. Penstemon |
| | Penstemon gracilentus A.Gray sect. Saccanthera |
| | Penstemon gracilis Nutt. sect. Penstemon |
| | Penstemon grahamii D.D.Keck sect. Cristati |
| | Penstemon griffinii A.Nelson sect. Penstemon |
| | Penstemon hallii A.Gray sect. Glabri |
| | Penstemon harbourii A.Gray sect. Penstemon |
| | Penstemon harringtonii Penland sect. Coerulei |
| | Penstemon haydenii S.Watson ex J.M.Coult. sect. Coerulei |
| | Penstemon heterander Torr. & A.Gray sect. Penstemon |
| | Penstemon humilis Nutt. ex A.Gray sect. Penstemon |
| | Penstemon idahoensis N.D.Atwood & S.L.Welsh sect. Glabri |
| | Penstemon jamesii Benth. sect. Cristati |
| | Penstemon janishiae N.H.Holmgren sect. Cristati |
| | Penstemon kingii S.Watson sect. Saccanthera |
| | Penstemon laetus A.Gray sect. Saccanthera |
| | Penstemon laricifolius Hook. & Arn. sect. Cristati |
| | Penstemon laxus A.Nelson sect. Penstemon |
| | Penstemon lemhiensis (D.D.Keck) D.D.Keck & Cronquist sect. Glabri |
| | Penstemon lentus Pennell sect. Coerulei |
| | Penstemon leonardii Rydb. sect. Saccanthera |
| | Penstemon luculentus R.L.Johnson & M.R.Stevens sect. Glabri |
| | Penstemon lyallii (A.Gray) A.Gray sect. Erianthera |
| | Penstemon mensarum Pennell sect. Glabri |
| | Penstemon militaris Greene sect. Penstemon |
| | Penstemon miser A.Gray sect. Cristati |
| | Penstemon moffatii Eastw. sect. Cristati |
| | Penstemon montanus Greene sect. Erianthera |
| | Penstemon mucronatus N.H.Holmgren sect. Coerulei |
| | Penstemon newberryi A.Gray sect. Erianthera |
| | Penstemon nitidus Douglas ex Benth. sect. Coerulei |
| | Penstemon ophianthus Pennell sect. Cristati |
| | Penstemon oreganus (A.Gray) Howell sect. Penstemon |
| | Penstemon oreocharis Greene sect. Penstemon |
| | Penstemon osterhoutii Pennell sect. Coerulei |
| | Penstemon palustris Pennell sect. Penstemon |
| | Penstemon payettensis A.Nelson & J.F.Macbr. sect. Glabri |
| | Penstemon paysoniorum D.D.Keck sect. Glabri |
| | Penstemon peckii Pennell sect. Penstemon |
| | Penstemon penlandii W.A.Weber sect. Glabri |
| | Penstemon pennellianus D.D.Keck sect. Glabri |
| | Penstemon perbrevis (Pennell) P.M.Sl. sect. Caespitosi |
| | Penstemon perpulcher A.Nelson sect. Glabri |
| | Penstemon praeteritus (Cronquist) P.M.Sl. sect. Erianthera |
| | Penstemon pratensis Greene sect. Penstemon |
| | Penstemon procerus Douglas ex Graham sect. Penstemon |
| | Penstemon procumbens Greene sect. Caespitosi |
| | Penstemon pruinosus Douglas sect. Penstemon |
| | Penstemon pseudoprocerus Rydb. sect. Penstemon |
| | Penstemon pumilus Nutt. sect. Cristati |
| | Penstemon radicosus A.Nelson sect. Penstemon |
| | Penstemon ramaleyi A.Nelson sect. Caespitosi |
| | Penstemon redactus (Pennel & D.D.Keck) P.M.Sl. sect. Erianthera |
| | Penstemon retrorsus Payson sect. Caespitosi |
| | Penstemon roezlii Regel sect. Saccanthera |
| | Penstemon rostriflorus Kellogg sect. Bridgesiani |
| | Penstemon rupicola (Piper) Howell sect. Erianthera |
| | Penstemon rydbergii A.Nelson sect. Penstemon |
| | Penstemon saxosorum Pennell sect. Glabri |
| | Penstemon scariosus Pennell sect. Glabri |
| | Penstemon scouleri Douglas sect. Erianthera |
| | Penstemon secundiflorus Benth. sect. Coerulei |
| | Penstemon seorsus (A.Nelson) D.D.Keck sect. Penstemon |
| | Penstemon serrulatus Menzies sect. Saccanthera |
| | Penstemon spatulatus Pennell sect. Penstemon |
| | Penstemon speciosus Douglas sect. Glabri |
| | Penstemon strictiformis Rydb. sect. Glabri |
| | Penstemon strictus Benth. sect. Glabri |
| | Penstemon subglaber Rydb. sect. Glabri |
| | Penstemon subserratus Pennell sect. Penstemon |
| | Penstemon teucrioides Greene sect. Caespitosi |
| | Penstemon tolmiei Hook. sect. Penstemon |
| | Penstemon triphyllus Douglas sect. Saccanthera |
| | Penstemon utahensis Eastw. sect. Gentianoides |
| | Penstemon variabilis Suksd. sect. Penstemon |
| | Penstemon venosus (D.D.Keck) Reveal sect. Coerulei |
| | Penstemon venustus Douglas sect. Saccanthera |
| | Penstemon versicolor Pennell sect. Coerulei |
| | Penstemon virens Pennell ex Rydb. sect. Penstemon |
| | Penstemon virgatus A.Gray sect. Glabri |
| | Penstemon washingtonensis D.D.Keck sect. Penstemon |
| | Penstemon watsonii A.Gray sect. Penstemon |
| | Penstemon whippleanus A.Gray sect. Penstemon |
| | Penstemon whitedii Piper sect. Erianthera |
| | Penstemon wilcoxii Rydb. sect. Penstemon |
| | Penstemon yampaensis Penland sect. Cristati |
| | Petradoria pumila (Nutt.) Greene trib. Astereae |
| | Petrophytum caespitosum (Nutt.) Rydb. |
| | Petrophytum cinerascens (Piper) Rydb. |
| | Petrophytum hendersonii (Canby ex Greene) Rydb. |
| | Phacelia argentea A.Nelson & J.F.Macbr. |
| | Phacelia ciliosa (Rydb.) Rydb. |
| | Phacelia corymbosa Jeps. |
| | Phacelia frigida Greene |
| | Phacelia hydrophylloides Torr. ex A.Gray |
| | Phacelia lenta Piper |
| | Phacelia lyallii (A.Gray) Rydb. |
| | Phacelia sericea (Graham) A.Gray |
| | Phemeranthus calcaricus (S.Ware) Kiger |
| | Phemeranthus calycinus (Engelm.) Kiger |
| | Phemeranthus parviflorus (Nutt.) Kiger |
| | Phemeranthus sediformis (Poelln.) Kiger |
| | Phemeranthus spinescens (Torr.) Hershk. |
| | Phlox aculeata A.Nelson Microphlox, Aculeatae |
| | Phlox adsurgens Torr. ex A.Gray Alphaphlox, Stoloniferae |
| | Phlox albomarginata M.E.Jones Microphlox, Albomarginata |
| | Phlox alyssifolia Greene Microphlox, Albomarginata |
| | Phlox andicola (Britton) E.E.Nelson Microphlox, Multiflorae |
| | Phlox austromontana Coville Microphlox, Canescentes |
| | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| | Phlox canescens Torr. & A.Gray Microphlox, Canescentes |
| | Phlox caryophylla Wherry Alphaphlox, Longifoliae |
| | Phlox collina Rydb. Microphlox, Albomarginata |
| | Phlox colubrina Wherry & Constance Protophlox, Speciosae |
| | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| | Phlox costata Rydb. Microphlox, Multiflorae |
| | Phlox densa Brand Microphlox, Canescentes |
| | Phlox diapensioides Rydb. Microphlox, Albomarginata |
| | Phlox diffusa Benth. Microphlox, Canescentes |
| | Phlox douglasii Hook. |
| | Phlox glabrata (E.E.Nelson) Brand Microphlox, Canescentes |
| | Phlox hendersonii (E.E.Nelson) Cronquist Microphlox, Douglasianae |
| | Phlox hoodii Richardson Microphlox, Canescentes |
| | Phlox kelseyi Britton Microphlox, Sibiricae |
| | Phlox lanceolata E.E.Nelson Protophlox, Speciosae |
| | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| | Phlox muscoides Nutt. Microphlox, Canescentes |
| | Phlox opalensis Dorn |
| | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| | Phlox pungens Dorn |
| | Phlox rigida Benth. Microphlox, Douglasianae |
| | Phlox scleranthifolia Rydb. Microphlox, Canescentes |
| | Phlox solivaga Mayfiels & Darrach |
| | Phlox speciosa Pursh Protophlox, Speciosae |
| | Phlox suksdorfii (Brand) H.St.John Protophlox, Speciosae |
| | Phlox viscida E.E.Nelson Alphaphlox, Longifoliae |
| | Phoenicaulis cheiranthoides Nutt. |
| | Phyla cuneifolia (Torr.) Greene |
| | Phyla lanceolata (Michx.) Greene |
| | Phyllodoce empetriformis (Sm.) D.Don |
| | Phyllodoce glanduliflora (Hook.) Coville |
| | Physaria acutifolia Rydb. |
| | Physaria alpestris Suksd. |
| | Physaria alpina Rollins |
| | Physaria arenosa (Richardson) O´Kane & Al-Shehbaz |
| | Physaria bellii G.A.Mulligan |
| | Physaria brassicoides Rydb. |
| | Physaria calcicola (Rollins) O´Kane & Al-Shehbaz |
| | Physaria carinata (Rollins) O´Kane & Al-Shehbaz |
| | Physaria cobrensis (Rollins & E.A.Shaw) N.H.Holmgren |
| | Physaria condensata Rollins |
| | Physaria congesta (Rollins) O´Kane & Al-Shehbaz |
| | Physaria cordiformis Rollins |
| | Physaria curvipes (A.Nelson) Grady & O´Kane |
| | Physaria didymocarpa (Hook.) A.Gray |
| | Physaria diversifolia (Greene) P.M.Sl. |
| | Physaria dornii Lichvar |
| | Physaria douglasii (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria eburniflora Rollins |
| | Physaria eriocarpa Grady & O´Kane |
| | Physaria fendleri (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria floribunda Rydb. |
| | Physaria fremontii (Rollins & E.A.Shaw) O´Kane & Al-Shehbaz |
| | Physaria geyeri (Hook.) A.Gray |
| | Physaria humilis (Rollins) O´Kane & Al-Shehbaz |
| | Physaria chambersii Rollins |
| | Physaria integrifolia (Rollins) Lichvar |
| | Physaria kingii (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria klausii (Rollins) O´Kane & Al-Shehbaz |
| | Physaria lanata (A.Nelson) Rydb. |
| | Physaria lesicae (Rollins) O´Kane & Al-Shehbaz |
| | Physaria ludoviciana (Nutt.) O´Kane & Al-Shehbaz |
| | Physaria lyrata (C.L.Hitchc.) P.M.Sl. |
| | Physaria macrocarpa (A.Nelson) O´Kane & Al-Shehbaz |
| | Physaria montana (A.Gray) Greene |
| | Physaria multiceps (Maguire) O´Kane & Al-Shehbaz |
| | Physaria nelsoni O´Kane & Al-Shehbaz |
| | Physaria obcordata Rollins |
| | Physaria obdeltata (Rollins) O´Kane & Al-Shehbaz |
| | Physaria occidentalis (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria oregona S.Watson |
| | Physaria osterhoutii Payson |
| | Physaria ovalifolia (Rydb. ex Britton) O´Kane & Al-Shehbaz |
| | Physaria pachyphylla O´Kane & Grady |
| | Physaria parviflora (Rollins) O´Kane & Al-Shehbaz |
| | Physaria parvula (Greene) O´Kane & Al-Shehbaz |
| | Physaria paysonii (Rollins) O´Kane & Al-Shehbaz |
| | Physaria prostrata (A.Nelson) O´Kane & Al-Shehbaz |
| | Physaria pruinosa (Greene) O´Kane & Al-Shehbaz |
| | Physaria pulchella (Rollins) O´Kane & Al-Shehbaz |
| | Physaria pulvinata O´Kane & Reveal |
| | Physaria pycnantha Grady & O´Kane |
| | Physaria rectipes (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria reediana O´Kane & Al-Shehbaz |
| | Physaria rollinsii G.A.Mulligan |
| | Physaria saximontana Rollins |
| | Physaria scrotiformis O´Kane |
| | Physaria spatulata (Rydb.) Grady & O´Kane |
| | Physaria subumbellata (Rollins) O´Kane & Al-Shehbaz |
| | Physaria tuplashensis (Rollins & al.) P.M.Sl. |
| | Physaria vicina (J.L.Anderson & al.) O´Kane & Al-Shehbaz |
| | Physaria vitulifera Rydb. |
| | Picradeniopsis oppositifolia (Nutt.) Rydb. trib. Helenieae |
| | Picradeniopsis woodhousei (A.Gray) Rydb. trib. Helenieae |
| | Pinguicula macroceras Pall. ex Link |
| | Plagiobothrys mollis (A.Gray) I.M.Johnst. |
| | Platyschkuhria integrifolia (A.Gray) Rydb. trib. Helenieae |
| | Pleiacanthus spinosus (Nutt.) Rydb. trib. Cichorieae |
| | Podistera eastwoodiae (J.M.Coult. & Rose) Mathias & Const. |
| | Polemonium brandegeei (A.Gray) Greene |
| | Polemonium californicum Eastw. |
| | Polemonium carneum A.Gray |
| | Polemonium delicatum Rydb. |
| | Polemonium elegans Greene |
| | Polemonium lindleyi Wherry |
| | Polemonium pectinatum Greene |
| | Polemonium pulcherrimum Hook. |
| | Polemonium viscosum Nutt. |
| | Polyctenium fremontii (S.Watson) Greene |
| | Polygonum paronychia Cham. & Schltdl. |
| | Potentilla baileyi (S.Watson) Greene |
| | Potentilla beneolens (A.Nelson & J.F.Macbr.) P.M.Sl. |
| | Potentilla bicrenata Rydb. |
| | Potentilla brevifolia Nutt. |
| | Potentilla breweri S.Watson |
| | Potentilla brownii (Rydb.) P.M.Sl. |
| | Potentilla capitata (Lindl.) Greene |
| | Potentilla caruifolia (Rydb.) Crum |
| | Potentilla concinna Richardson |
| | Potentilla congesta (Douglas ex Hook.) Baill. |
| | Potentilla crinita A.Gray |
| | Potentilla cryptocaulis Clokey |
| | Potentilla daucifolia Greene |
| | Potentilla decurrens (S.Watson) Rydb. |
| | Potentilla douglasii Greene |
| | Potentilla drummondii Lehm. |
| | Potentilla effusa Douglas ex Lehm. |
| | Potentilla filicoides (Crum) P.M.Sl. |
| | Potentilla flabellifolia Hook. ex Torr. & A.Gray |
| | Potentilla flavescens (Rydb.) P.M.Sl. |
| | Potentilla floraeana P.M.Sl. |
| | Potentilla glaucophylla Lehm. |
| | Potentilla gordonii (Hook.) Greene |
| | Potentilla hendersonii (Howell) J.T.Howell |
| | Potentilla hookeriana Lehm. |
| | Potentilla howellii Greene |
| | Potentilla hyparctica Malte |
| | Potentilla janaeana P.M.Sl. |
| | Potentilla jepsonii Ertter |
| | Potentilla macounii Rydb. |
| | Potentilla millefolia Rydb. |
| | Potentilla multisecta (S.Watson) Rydb. |
| | Potentilla newberryi A.Gray |
| | Potentilla nivea L. |
| | Potentilla ottonis P.M.Sl. |
| | Potentilla ovina Macoun |
| | Potentilla pensylvanica L. |
| | Potentilla perdissecta Rydb. |
| | Potentilla plattensis Nutt. |
| | Potentilla proxima Rydb. |
| | Potentilla pseudocapitata (Rydb. ex Howell) P.M.Sl. |
| | Potentilla rhypara (Ertter & Reveal) Mosyakin & Shiyan |
| | Potentilla rubricaulis Lehm. |
| | Potentilla rupincola Osterh. |
| | Potentilla sericata (S.Watson) Greene |
| | Potentilla shellyi (Ertter) P.M.Sl. |
| | Potentilla shockleyi (S.Watson) Jeps. |
| | Potentilla subjuga Rydb. |
| | Potentilla subviscosa Greene |
| | Potentilla tilingii (Regel) Greene |
| | Potentilla tweedyi (Rydb.) J..T.Howell |
| | Potentilla ursinorum (Jeps.) P.M.Sl. |
| | Potentilla villosa Pall. ex Pursh |
| | Potentilla vreelandii Rydb. |
| | Potentilla wasatchensis (N.H.Holm. ex Errt. & Reveal) P.M.Sl. |
| | Primula alcalina Cholewa & Douglass M.Hend. sect. Farinosae |
| | Primula angustifolia Torr. sect. Parryi |
| | Primula austrofrigida (K.L.Chamb.) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula conjugens (Greene) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula cusickiana (A.Gray) A.Gray sect. Parryi |
| | Primula cusickii (Greene) P.M.Sl. sect. Dodecatheon |
| | Primula distola (Reveal) P.M.Sl. |
| | Primula egaliksensis Wormsk. sect. Farinosae |
| | Primula hendersonii (A.Gray) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula incana M.E.Jones sect. Farinosae |
| | Primula jeffreyi (Van Houtte) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula latiloba (A.Gray) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula parryi A.Gray sect. Parryi |
| | Primula pauciflora (Durand) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula poetica (L.F.Hend.) R.A.Mast & Reveal sect. Dodecatheon |
| | Primula shoshonensis (A.Nelson) P.M.Sl. sect. Dodecatheon |
| | Primula superba (Pennell & Stair) P.M.Sl. sect. Dodecatheon |
| | Primula tetrandra (Suksd.) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula viscida (Piper) P.M.Sl. sect. Dodecatheon |
| | Primula zionensis (Eastw.) P.M.Sl. sect. Dodecatheon |
| | Psilostrophe bakeri Greene trib. Helenieae |
| | Pulsatilla nuttalliana (DC.) Bercht. & J.Presl |
| | Pulsatilla occidentalis (S.Watson) Freyn |
| | Pyrola asarifolia Michx. |
| | Pyrola bracteata Hook. |
| | Pyrola crypta Jolles |
| | Pyrola dentata Sm. |
| | Pyrola elliptica Nutt. |
| | Pyrola chlorantha Sw. |
| | Pyrola minor L. |
| | Pyrola picta Sm. |
| | Pyrrocoma carthamoides Hook. trib. Astereae |
| | Pyrrocoma clementis Rydb. trib. Astereae |
| | Pyrrocoma hirta (A.Gray) Greene trib. Astereae |
| | Pyrrocoma howellii (A.Gray) Greene trib. Astereae |
| | Pyrrocoma integrifolia (Porter ex A.Gray) Greene trib. Astereae |
| | Pyrrocoma subsquarrosa Greene trib. Astereae |
| | Pyrrocoma uniflora (Hook.) Greene trib. Astereae |
| | Pyrrocoma villosa Rydb. trib. Astereae |
| | |
| | Raillardella argentea A.Gray trib. Madieae |
| | Raillardella scaposa A.Gray trib. Madieae |
| | Ranunculus adoneus A.Gray |
| | Ranunculus andersonii A.Gray |
| | Ranunculus californicus Benth. |
| | Ranunculus digitatus Hook. |
| | Ranunculus ellipticus Greene |
| | Ranunculus eschscholtzii Schltdl. |
| | Ranunculus eximius Greene |
| | Ranunculus glaberrimus Hook. |
| | Ranunculus gormanii Greene |
| | Ranunculus hyperboreus Rottb. |
| | Ranunculus inamoenus Greene |
| | Ranunculus macauleyi A.Gray |
| | Ranunculus populago Greene |
| | Ranunculus pygmaeus Wahlenb. |
| | Ranunculus rhomboideus Goldie |
| | Ranunculus suksdorfii A.Gray |
| | Ranunculus trisectus Eastw. |
| | Ranunculus triternatus A.Gray |
| | Rhinotropis californica (Nutt.) J.R.Abbott |
| | Rhinotropis subspinosa (S.Watson) J.R.Abbott |
| | Rhodiola integrifolia Raf. |
| | Rhodiola rhodantha (A.Gray) H.Jacobsen |
| | Rhysopterus plurijugus J.M.Coult. & Rose |
| | Romanzoffia californica Greene |
| | Romanzoffia sitchensis Bong. |
| | Romanzoffia tracyi Jeps. |
| | Rubus acaulis Michx. |
| | Rubus arcticus L. |
| | Rubus nivalis Douglas ex Hook. |
| | Rubus pedatus Sm. |
| | Rumex venosus Pursh |
| | |
| | Sabulina austromontana (S.J.Wolf & Packer) Dillenb. & Kad. |
| | Sabulina basaltica B.S.Legler |
| | Sabulina fragilis (Maguire & A.H.Holmgren) P.M.Sl. |
| | Sabulina gracilior P.M.Sl. |
| | Sabulina gregaria (A.Heller) P.M.Sl. |
| | Sabulina macrantha (Rydb.) Dillenb. & Kadereit |
| | Sabulina nuttallii (Pax) Dillenb. & Kadereit |
| | Sabulina rubella (Wahlenb.) Dillenb. & Kadereit |
| | Sabulina sororia B..S.Legler |
| | Sabulina stricta (Sw.) Rchb. |
| | Salix arctica Pall. |
| | Salix arizonica Dorn |
| | Salix atra Rydb. |
| | Salix boothii Dorn |
| | Salix brachycarpa Nutt. |
| | Salix cascadensis Cockerell |
| | Salix dodgeana Rydb. |
| | Salix nivalis Hook. |
| | Salix petrophila Rydb. |
| | Salix reticulata L. |
| | Salix rotundifolia Trautv. |
| | Salix vestita Pursh |
| | Salvia dorrii (Kellogg) Abrams |
| | Sandbergia perplexa (L.F.Hend.) Al-Shehbaz |
| | Sanicula arctopoides Hook. & Arn. |
| | Sanicula laciniata Hook. & Arn. |
| | Saussurea weberi Hultén trib. Cardueae |
| | Saxifraga austromontana Wiegand sect. Trachyphyllum |
| | Saxifraga cernua L. sect. Mesogyne |
| | Saxifraga cespitosa L. sect. Saxifraga |
| | Saxifraga crandallii Gand. sect. Ciliatae |
| | Saxifraga debilis Engelm. ex A.Gray sect. Mesogyne |
| | Saxifraga hirculus L. sect. Ciliatae |
| | Saxifraga hyperborea R.Br. sect. Mesogyne |
| | Saxifraga chrysantha A.Gray sect. Ciliatae |
| | Saxifraga oppositifolia L. sect. Porphyrion |
| | Saxifraga vespertina (Small) Fedde sect. Trachyphyllum |
| | Saxifragopsis fragarioides (Greene) Small |
| | Scabrethia scabra (Hook.) W.A.Weber trib. Heliantheae |
| | Scutellaria angustifolia Pursh |
| | Scutellaria antirrhinoides Benth. |
| | Scutellaria brittonii Porter |
| | Scutellaria nana A.Gray |
| | Scutellaria nevadensis Eastw. |
| | Scutellaria resinosa Torr. |
| | Scutellaria tuberosa Benth. |
| | Sedum borschii (R.T.Clausen) R.T.Clausen |
| | Sedum ciliosum Howell |
| | Sedum debile S.Watson |
| | Sedum divergens S.Watson |
| | Sedum heckneri M.Peck sect. Genuina |
| | Sedum lanceolatum Torr. |
| | Sedum laxum (Britton) A.Berger sect. Genuina |
| | Sedum leibergii Britton |
| | Sedum monanthum Suksd. |
| | Sedum moranii R.T.Clausen sect. Genuina |
| | Sedum nesioticum G.N.Jones |
| | Sedum oblanceolatum R.T.Clausen |
| | Sedum oreganum Nutt. |
| | Sedum oregonense (S.Watson) M.E.Peck sect. Genuina |
| | Sedum pruinosum Britton |
| | Sedum rupicola G.N.Jones |
| | Sedum spathulifolium Hook. |
| | Sedum stelliforme S.Watson sect. Mexicali |
| | Sedum stenopetalum Pursh |
| | Senecio amplectens A.Gray trib. Senecioneae |
| | Senecio blitoides Greene trib. Senecioneae |
| | Senecio elmeri Piper trib. Senecioneae |
| | Senecio fremontii Torr. & A.Gray trib. Senecioneae |
| | Senecio holmii Greene trib. Senecioneae |
| | Senecio neowebsteri S.F.Blake trib. Senecioneae |
| | Senecio soldanella A.Gray trib. Senecioneae |
| | Senecio spribillei W.A.Weber trib. Senecioneae |
| | Senecio taraxacoides (A.Gray) Greene trib. Senecioneae |
| | Senega alba (Nutt.) J.F.B.Pastore & J.R.Abboott |
| | Senega officinalis Spach |
| | Sericocarpus rigidus Lindl. |
| | Shoshonea pulvinata Evert & Constance |
| | Schizotechium americanum (Porter ex B.L.Rob.) Arabi & al. |
| | Schizotechium jamesianum (Torr.) Arabi, Rabeler & Zarre |
| | Sibbaldia procumbens L. |
| | Silene acaulis (L.) Jacq. |
| | Silene bernardina S.Watson |
| | Silene bolanderi A.Gray |
| | Silene douglasii Hook. |
| | Silene grayi S.Watson |
| | Silene hitchguirei Bocquet |
| | Silene hookeri Nutt. |
| | Silene kingii (S.Watson) Bocquet |
| | Silene lemmonii S.Watson |
| | Silene menziesii Hook. |
| | Silene oraria M.Peck |
| | Silene oregana S.Watson |
| | Silene parryi (S.Watson) C.L.Hitchc. & Maguire |
| | Silene repens Patrin |
| | Silene sargentii S.Watson |
| | Silene seelyi C.V.Morton & J.W.Thomps. |
| | Silene serpentinicola T.W.Nelson & J.P.Nelson |
| | Silene suksdorfii B.L.Rob. |
| | Silene uralensis (Rupr.) Bocquet |
| | Smelowskia americana (Regel & Herder) Rydb. |
| | Smelowskia ovalis M.E.Jones |
| | Solidago mollis Bartl. trib. Astereae |
| | Solidago multiradiata Aiton trib. Astereae |
| | Solidago nana Nutt. trib. Astereae |
| | Solidago simplex var. nana (A.Gray) G.S.Ringius trib. Astereae |
| | Solidago spathulata DC. trib. Astereae |
| | Sphaeralcea coccinea (Nutt.) Rydb. |
| | Sphaeralcea leptophylla (A.Gray) Rydb. |
| | Sphaeralcea munroana (Douglas ex Lindl.) Spach ex A.Gray |
| | Sphaeralcea parvifolia A.Nelson |
| | Stellaria humifusa Rottb. |
| | Stellaria irrigua Bunge |
| | Stenotus acaulis (Nutt.) Nutt. trib. Astereae |
| | Stenotus armerioides Nutt. trib. Astereae |
| | Stephanomeria fluminea Gottlieb trib. Cichorieae |
| | Stephanomeria lactucina A.Gray trib. Cichorieae |
| | Stephanomeria runcinata Nutt. trib. Cichorieae |
| | Suksdorfia violacea A.Gray |
| | Sullivantia hapemanii J.M.Coult. |
| | Sullivantia oregana S.Watson |
| | Sullivantia purpusii (Brandegee) Rosend. |
| | Swertia perennis L. |
| | Symphyotrichum apricum (A.Gray) P.M.Sl. trib. Astereae |
| | Symphyotrichum campestre (Nutt.) G.L.Nesom trib. Astereae |
| | Symphyotrichum fendleri (A.Gray) G.L.Nesom trib. Astereae |
| | Symphyotrichum parryi (D.C.Eaton) P.M.Sl. trib. Astereae |
| | Symphyotrichum porteri (A.Gray) G.L.Nesom trib. Astereae |
| | |
| | Tanacetum bipinnatum (L.) Sch.Bip. trib. Anthemideae |
| | Taraxacum alaskanum Rydb. trib. Cichorieae |
| | Taraxacum ceratophorum (Ledeb.) DC. trib. Cichorieae |
| | Taraxacum scopulorum (A.Gray) Rydb. trib. Cichorieae |
| | Taraxia breviflora (Torr. & A.Gray) Nutt. ex Small |
| | Taraxia ovata (Nutt.) Small |
| | Taraxia subacaulis (Pursh) Rydb. |
| | Taraxia tanacetifolia (Torr. & A.Gray) Piper |
| | Tauschia howellii (J.M.Coult. & Rose) J.F.Macbr. |
| | Tauschia stricklandii (J.M.Coult. & Rose) Mathias |
| | Telesonix heucheriformis (Rydb.) Rydb. |
| | Telesonix jamesii (Torr.) Raf. |
| | Tellima grandiflora (Pursh) Douglas ex Lindl. |
| | Tephroseris lindstroemii (Ostenf.) Á. & D.Löve trib. Senecioneae |
| | Tetradymia canescens DC. trib. Senecioneae |
| | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| | Tetraneuris arizonica Greene trib. Helenieae |
| | Tetraneuris brevifolia Greene trib. Helenieae |
| | Tetraneuris epunctata A.Nelson trib. Helenieae |
| | Tetraneuris ivesiana Greene trib. Helenieae |
| | Tetraneuris scaposa (DC.) Greene trib. Helenieae |
| | Tetraneuris torreyana (Nutt.) Greene trib. Helenieae |
| | Teucrium laciniatum Torr. |
| | Thalictrum alpinum L. |
| | Thalictrum heliophilum Wilken & DeMott |
| | Thelesperma subnudum A.Gray trib. Coreopsidae |
| | Thermopsis rhombifolia (Pursh) Richardson trib. Thermopsideae |
| | Tiarella laciniata Hook. |
| | Tiarella trifoliata L. |
| | Tiarella unifoliata Hook. |
| | Tolmiea menziesii (Pursh) Torr. & A.Gray |
| | Tonestus lyallii A.Nelson trib. Astereae |
| | Tonestus pygmaeus A.Nelson trib. Astereae |
| | Townsendia condensata Parry trib. Astereae |
| | Townsendia eximia A.Gray trib. Astereae |
| | Townsendia exscapa (Richardson) Porter trib. Astereae |
| | Townsendia fendleri A.Gray trib. Astereae |
| | Townsendia florifera (Hook.) A.Gray trib. Astereae |
| | Townsendia glabella A.Gray trib. Astereae |
| | Townsendia grandiflora Nutt. trib. Astereae |
| | Townsendia hookeri Beaman trib. Astereae |
| | Townsendia incana Nutt. trib. Astereae |
| | Townsendia leptotes (A.Gray) Osterh. trib. Astereae |
| | Townsendia microcephala Dorn trib. Astereae |
| | Townsendia montana M.E.Jones trib. Astereae |
| | Townsendia parryi Eaton trib. Astereae |
| | Townsendia rothrockii A.Gray ex Rothr. trib. Astereae |
| | Townsendia scapigera D.C.Eaton trib. Astereae |
| | Townsendia spathulata Nutt. trib. Astereae |
| | Townsendia strigosa Nutt. trib. Astereae |
| | Trifolium andinum Nutt. trib. Trifolieae |
| | Trifolium anemophilum Greene trib. Trifolieae |
| | Trifolium arcuatum Piper trib. Trifolieae |
| | Trifolium attenuatum Greene trib. Trifolieae |
| | Trifolium beckwithii W.H.Brewer ex S.Watson trib. Trifolieae |
| | Trifolium brandegeei S.Watson trib. Trifolieae |
| | Trifolium caurinum Piper trib. Trifolieae |
| | Trifolium dasyphyllum Torr. & A.Gray trib. Trifolieae |
| | Trifolium elmeri Greene trib. Trifolieae |
| | Trifolium eriocephalum Nutt. trib. Trifolieae |
| | Trifolium gymnocarpon Nutt. trib. Trifolieae |
| | Trifolium hansenii Greene trib. Trifolieae |
| | Trifolium harneyensis Howell trib. Trifolieae |
| | Trifolium haydenii Porter trib. Trifolieae |
| | Trifolium latifolium (Hook.) Greene trib. Trifolieae |
| | Trifolium leibergii A.Nels. & J.F.Macbr. trib. Trifolieae |
| | Trifolium longipes Nutt. trib. Trifolieae |
| | Trifolium macrocephalum (Pursh) Poir. trib. Trifolieae |
| | Trifolium montanense Rydb. trib. Trifolieae |
| | Trifolium multipedunculatum P.B.Kenn. trib. Trifolieae |
| | Trifolium nanum Torr. trib. Trifolieae |
| | Trifolium oreganum Howell trib. Trifolieae |
| | Trifolium parryi A.Gray trib. Trifolieae |
| | Trifolium pedunculatum Rydb. trib. Trifolieae |
| | Trifolium rydbergii Greene trib. Trifolieae |
| | Trifolium uintense Rydb. trib. Trifolieae |
| | Trollius albiflorus (A.Gray) Rydb. |
| | |
| | Vaccinium cespitosum Michx. |
| | Vaccinium deliciosum Piper |
| | Vaccinium membranaceum Douglas ex Torr. |
| | Vaccinium myrtilloides Michx. |
| | Vaccinium oxycoccos L. |
| | Vaccinium scoparium Leiberg ex Coville |
| | Valeriana arizonica A.Gray |
| | Vancouveria hexandra C.Morren & Decne. |
| | Vancouveria chrysantha Greene |
| | Vancouveria planipetala Calloni |
| | Verbena bipinnatifida Schauer |
| | Veronica besseya M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica californica M.M.Mart.Ort. & Albach |
| | Veronica canbyi (Pennell) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica cusickii A.Gray subgen. Veronica |
| | Veronica dissecta (Rydb.) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica idahoensis M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica missurica Raf. subgen. Synthyris |
| | Veronica paysonii (Pennell) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica plantaginea E.James subgen. Synthyris |
| | Veronica regina-nivalis M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica ritteriana (Eastw.) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica rubra (Douglas ex Hook.) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica schizantha (Piper) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica wormskjoldii Roem. & Schult. subgen. Veronica |
| | Veronica wyomingensis (A.Nelson) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Vesper bulbosus (A.Nelson) R.L.Hartm. & G.L.Nesom |
| | Vesper montanus (Torr. & A.Gray) R.L.Hartm. & G.L.Nesom |
| | Vesper purpurascens (A.Gray) R.L.Hartm. & G.L.Nesom |
| | Viola adunca Sm. sect. Viola |
| | Viola bakeri Greene |
| | Viola beckwithii Torr. & A.Gray sect. Viola |
| | Viola biflora L. sect. Dischidium |
| | Viola canadensis L. sect. Viola |
| | Viola cuneata S.Watson sect. Viola |
| | Viola douglasii Steud. sect. Viola |
| | Viola flavovirens Pollard |
| | Viola flettii Piper sect. Chamaemelanium |
| | Viola glabella Nutt. sect. Chamaemelanium |
| | Viola hallii A.Gray sect. Chamaemelanium |
| | Viola howellii A.Gray |
| | Viola labradorica Schrank sect. Viola |
| | Viola langsdorfii Fisch. ex Ging. sect. Viola |
| | Viola linguifolia Nutt. |
| | Viola lobata Benth. sect. Viola |
| | Viola macloskeyi F.E.Lloyd sect. Viola |
| | Viola nephrophylla Greene sect. Viola |
| | Viola nuttallii Pursh sect. Viola |
| | Viola occidentalis (A.Gray) Howell sect. Viola |
| | Viola ocellata Torr. & A.Gray sect. Viola |
| | Viola orbiculata (A.Gray) Geyer ex B.D.Jacks. sect. Viola |
| | Viola pedatifida G.Don sect. Viola |
| | Viola praemorsa Douglas |
| | Viola pubescens Aiton sect. Viola |
| | Viola purpurea Kellogg |
| | Viola quercetorum M.S.Baker & J.C.Clausen |
| | Viola renifolia A.Gray |
| | Viola rugulosa Greene sect. Viola |
| | Viola scopulorum (A.Gray) Greene sect. Viola |
| | Viola selkirkii Pursh ex Goldie sect. Viola |
| | Viola sempervirens Greene sect. Viola |
| | Viola sheltonii Torr. sect. Viola |
| | Viola sororia Willd. sect. Viola |
| | Viola suecica Fr. sect. Viola |
| | Viola trinervata (Howel) Howell ex A.Gray |
| | Viola utahensis M.S.Baker & J.C.Clausen |
| | Viola vallicola A.Nelson |
| | Viola venosa (S.Watson) Rydb. |
| | |
| | Waldsteinia idahoensis Piper |
| | Whipplea modesta Torr. |
| | Wyethia angustifolia (DC.) Nutt. trib. Heliantheae |
| | Wyethia arizonica A.Gray trib. Heliantheae |
| | Wyethia helianthoides Nutt. trib. Heliantheae |
| | Wyethia mollis A.Gray trib. Heliantheae |
| | Wyethia sagittata (Pursh) Mabb. trib. Heliantheae |
| | |
| | Xanthisma coloradoense (A.Gray) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xylorhiza glabriuscula Nutt. trib. Astereae |
| | Xylorhiza venusta A.Heller trib. Astereae |
| | |
| | Yermo xanthocephalus Dorn trib. Senecioneae |
| | |
| | Zinnia grandiflora Nutt. trib. Heliantheae |